Practice Corner MCQs

Question 1 of 136

1. Question

In which animal, nerve cell is present but brain is absent?

Sponge
Cockroach
Honeybee
Hydra

Question 2 of 136

2. Question

Read the given statements and select the incorrect one.

In Hydra, all neurons are similar and join to form a nerve net.
In earthworms, nervous system consists of a dorsal nerve cord, paired ganglia and segmental nerves.
Brain is present in insects.
Planaria has two nerve cords that join to form rudimentary brain.

Question 3 of 136

3. Question

Neurons in sponges are

unipolar
bipolar
multipolar
absent

Question 4 of 136

4. Question

Visceral nervous system is part of

ANS
PNS
CNS
none of these

Question 5 of 136

5. Question

Afferent nerve fibre carries impulses from

effector to central neural system
receptor to central neural system
central neural system to muscle
central neural system to receptors

Question 6 of 136

6. Question

Skeletal muscles are controlled by

sympathetic nerves
parasympathetic nerves
somatic nerves
autonomic nerves

Question 7 of 136

7. Question

In a human being, the number of cranial nerves is

12 pairs
6 pairs
20 pairs
10 pairs

Question 8 of 136

8. Question

Select the correct match.

Olfactory nerve – Motor
Trigeminal nerve – Motor
Trochlear – Mixed
Optic nerve – Sensory

Question 9 of 136

9. Question

In a man, abducens nerve is injured. Which one of the following functions will be affected?

Movement of the eyeball
Movement of the tongue
Swallowing
Movement of the neck

Question 10 of 136

10. Question

Which one of the following transmits impulses to central neural system?

Abducens nerve
Trochlear nerve
Oculomotor nerve
Auditory nerve

Question 11 of 136

11. Question

Sympathetic neural system

increase BP
dilates pupil
both (a) and (b)
none of these

Question 12 of 136

12. Question

Which of the following nerves is purely a motor nerve

Vagus
Facial
Abducens
Trigeminal

Question 13 of 136

13. Question

Which of the following cranial nerves of man is both sensory and motor?

Olfactory
Optic
Trigeminal
Oculomotor

Question 14 of 136

14. Question

Vagus nerve effects

voice production
peristalsis
respiratory movements
all of these

Question 15 of 136

15. Question

Injury to vagus nerve in humans is not likely to affect

tongue movements
gastrointestinal movements
breathing
cardiac movements

Question 16 of 136

16. Question

Which of the following cranial nerves has the highest number of branches?

Vagus nerve
Trigeminal nerve
Facial nerve
None of these

Question 17 of 136

17. Question

How many pairs of cranial nerves are mixed nerves?

3
5
4
6

Question 18 of 136

18. Question

Hypoglossal nerve controls the movements of

ear
heart
tongue
limbs

Question 19 of 136

19. Question

In a human being, the number of spinal nerves is

31 pairs
52 pairs
12 pairs
36 pairs

Question 20 of 136

20. Question

The flow chart given here shows the functional organisation of the human neural system. Identify A to E and select the correct option.

A-PNS, B-CNS, C-ANS, D-Sympathetic neural system, E-Parasympathetic neural system
A-ANS, B-CNS, C-PNS, D-Parasympathetic neural system, E-Sympathetic neural system
A-CNS, B-PNS, C-ANS, D-Sympathetic neural system, E-Parasympathetic neural system
A-ANS, B-PNS, C-CNS, D-Parasympathetic neural system, E-Sympathetic neural system

Question 21 of 136

21. Question

One of the examples of the action of the autonomous neural system is

swallowing of food
pupillary reflex
peristalsis of the intestine
all of these

Question 22 of 136

22. Question

Sympathetic neural system induces

secretion of digestive juices
heartbeat
secretion of saliva
all of these

Question 23 of 136

23. Question

Which of the following options correctly identifies the effect of sympathetic and parasympathetic neural system on given features or organs?

\(
\begin{array}{|l|l|l|l|}
\hline & \text { Feature/ organ } & \begin{array}{l}
\text { sympathetic neural } \\
\text { system }
\end{array} & \begin{array}{l}
\text { Parasym- pathetic } \\
\text { neural system }
\end{array} \\
\hline \text { (a) } & \text { Salivary glands } & \text { Stimulates secretion } & \text { Inhibits secretion } \\
\hline \text { (b) } & \text { Pupil of the eye } & \text { Dilates } & \text { Constricts } \\
\hline \text { (c) } & \text { Heart rate } & \text { Decreases } & \text { increases } \\
\hline \text { (d) } & \begin{array}{l}
\text { Intestinal } \\
\text { peristalsis }
\end{array} & \text { Decreases Stimulates } & \text { Increases inhibits } \\
\hline
\end{array}
\)

a
b
c
d

Question 24 of 136

24. Question

Which of the following pairs correctly identifies function of parasympathetic nervous system?

Slows heartbeat, promotes pancreatic secretion
Increases secretion of sweat gland and intestinal gland
Accelerates heartbeat, dilates arteries
Raises blood pressure, increases peristaltic activity

Question 25 of 136

25. Question

Visceral nervous system comprises of

nerve fibres
ganglia
plexuses
all of these

Question 26 of 136

26. Question

The given figure shows the structure of a neuron. Select the option that correctly identifies the parts labelled as A to E.

\(
\begin{array}{|c|c|c|c|c|c|}
\hline & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\
\hline \text { (a) } & \begin{array}{l}
\text { Nerve } \\
\text { fibres }
\end{array} & \text { Cyton } & \begin{array}{l}
\text { Schwann } \\
\text { cell }
\end{array} & \begin{array}{l}
\text { Node of } \\
\text { Ranvier }
\end{array} & \begin{array}{l}
\text { Synaptic } \\
\text { knob }
\end{array} \\
\hline \text { (b) } & \text { Dendrites } & \text { Cyton } & \begin{array}{l}
\text { Schwann } \\
\text { cell }
\end{array} & \begin{array}{l}
\text { Node of } \\
\text { Ranvier }
\end{array} & \begin{array}{l}
\text { Synapti } \\
\text { knob }
\end{array} \\
\hline \text { (c) } & \text { Dendrites } & \begin{array}{l}
\text { Nerve } \\
\text { cell }
\end{array} & \begin{array}{l}
\text { Schwann } \\
\text { cell }
\end{array} & \begin{array}{l}
\text { Synaptic } \\
\text { knob }
\end{array} & \begin{array}{l}
\text { Node of } \\
\text { Ranvier }
\end{array} \\
\hline \text { (d) } & \text { Axons } & \text { cyton } & \text { Nerve cell } & \begin{array}{l}
\text { Node of } \\
\text { Ranvier }
\end{array} & \begin{array}{l}
\text { Synapti } \\
\text { knob }
\end{array} \\
\hline
\end{array}
\)

a
b
c
d

Question 27 of 136

27. Question

Myelin sheath is formed by

Ranvier cells
muscle cells
Schwann cells
axon

Question 28 of 136

28. Question

In a medullated nerve fibre, the conduction of impulse is faster due to the presence of

pericytes
endoneurium and epineurium
myelin sheath and nodes of Ranvier
Nissl's granules

Question 29 of 136

29. Question

Read the given paragraph.
In the resting state, the axonal membrane is (i) with more (ii) charged ions outside than inside. This unequal distribution of ions is due to the selective permeability of the membrane, which forms an almost impenetrable barrier to (iii) and the action of the (iv) which pumps (v) \(\mathrm{Na}^{+}\)out of the neuron for every (vi) \(\mathrm{K}^{+}\)brought in. Select the option that correctly fills the blanks in the paragraph.

\(
\begin{array}{|c|c|c|c|c|c|c|}
\hline & \text { (i) } & \text { (ii) } & \text { (iii) } & \text { (iv) } & \text { (v) } & \text { (iv) } \\
\hline \text { (a) } & \text { depolarised } & \text { positively } & \mathrm{Na}^{+} & \begin{array}{l}
\text { sodium- potassium } \\
\text { pump }
\end{array} & \text { three } & \text { two } \\
\hline \text { (b) } & \text { depolarised } & \text { negatively } & \mathrm{Na}^{+} & \begin{array}{l}
\text { sodium-potasium } \\
\text { pump }
\end{array} & \text { three } & \text { two } \\
\hline \text { (c) } & \text { polarised } & \text { negatively } & N a^{+} & \begin{array}{l}
\text { sodium-potasium } \\
\text { pump }
\end{array} & \text { three } & \text { two } \\
\hline \text { (d) } & \text { polarised } & \text { positively } & \mathrm{Na}^{+} & \begin{array}{l}
\text { sodium-potasium } \\
\text { pump }
\end{array} & \text { three } & \text { two } \\
\hline
\end{array}
\)

a
b
c
d

Question 30 of 136

30. Question

A nerve fibre during resting stage is

more permeable to \(\mathrm{Na}^{+}\)
more permeable to \(\mathrm{K}^{+}\)
equally permeable for \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)
less permeable to \(\mathrm{K}^{+}\)

Question 31 of 136

31. Question

Which of the following options illustrates the distribution of \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions in a section of non-myelinated axon which is at resting potential?

a
b
c
d

Question 32 of 136

32. Question

Sodium-potassium pump transports

\(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)out of the neuron
\(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)into the neuron
\(\mathrm{Na}^{+}\)into the neuron and \(\mathrm{K}^{+}\)out of the neuron
\(\mathrm{K}^{+}\)into the neuron and \(\mathrm{Na}^{+}\)out of the neuron

Question 33 of 136

33. Question

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive

\(\mathrm{Ca}^{2+}\) into the cell
\(\mathrm{K}^{+}\)and \(\mathrm{Na}^{+}\)out of the cell
\(\mathrm{Na}^{+}\)into the cell
\(\mathrm{Na}^{+}\)out of the cell

Question 34 of 136

34. Question

Which of the following statements are correct regarding \(\mathrm{Na}^{+}-\mathrm{K}^{+}\)pump?
(i) Needs energy (ATP) to work
(ii) Expels \(3 \mathrm{Na}^{+}\)for every \(2 \mathrm{~K}^{+}\)ions imported
(iii) Works against a concentration gradient
(iv) Maintains resting potential

(i) and (iv)
(ii) and (iii)
(i) and (iii)
All of these

Question 35 of 136

35. Question

The electrical potential difference between outside and inside of a nerve axon before excitation is known as

resting potential
action potential
spike potential
reaction potential

Question 36 of 136

36. Question

A typical value of resting membrane potential is

\(-100 \mathrm{mV}\)
\(-70 \mathrm{mV}\)
\(-40 \mathrm{mV}\)
\(-60 \mathrm{mV}\)

Question 37 of 136

37. Question

Complete the following paragraph by selecting the option that gives the correct sequence of words. When a stimulus is applied at a site on the polarised membrane, the membrane at that site becomes freely permeable to (i) ions. It causes rapid influx of (ii) ions leading to (iii) of the membrane.

\(
\begin{array}{|l|l|l|l|}
\hline & \text { (i) } & \text { (ii) } & \text { (iii) } \\
\hline \text { (a) } & N a^{+} & K^{+} & \text {depolarisation } \\
\hline \text { (b) } & K^{+} & K^{+} & \text {depolarisation } \\
\hline \text { (c) } & K^{+} & N a^{+} & \text {depolarisation } \\
\hline \text { (d) } & N a^{+} & N a^{+} & \text {depolarisation } \\
\hline
\end{array}
\)

a
b
c
d

Question 38 of 136

38. Question

During depolarisation, the outer surface of the membrane becomes

negatively charged
positively charged
neutrally charged
none of these

Question 39 of 136

39. Question

Depolarisation of axolemma during nerve conduction takes place because

equal amount of \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)move out across axolemma
only \(\mathrm{Na}^{+}\)move inside
more \(\mathrm{Na}^{+}\)moves outside than \(\mathrm{K}^{+}\)moving outside
none of these

Question 40 of 136

40. Question

During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?

First positive, then negative and continue to be negative
First negative, then positive and continue to be positive
First positive, then negative and again back to positive
First negative, then positive and again back to negative

Question 41 of 136

41. Question

Saltatory conduction of impulse occurs in

liver cells
non-myelinated nerve fibres
myelinated nerve fibres
none of these

Question 42 of 136

42. Question

Read the given statements and select the correct ones.
(i) Autonomic neural system transmits impulses from the CNS to the voluntary organs and striated muscles of the body.
(ii) Unmyelinated nerve fibres do not have Schwann cells which form the myelin sheath.
(iii) Axonal membrane of a neuron while not conducting any impulse is comparatively more permeable to potassium ions \(\left(\mathrm{K}^{+}\right)\)than to sodium ions \(\left(\mathrm{Na}^{+}\right)\).
(iv) A synapse is formed by the membranes of a presynaptic neuron and a post-synaptic neuron.

(i) and (ii)
(ii) and (iii)
(iii) and (iv)
(i) and (iv)

Question 43 of 136

43. Question

The junction between the axon of one neuron and the dendrite of the next is called

constant bridge
junction point
joint
synapse

Question 44 of 136

44. Question

Which of the following statements is/are incorrect about the electrical synapse?
(i) At electrical synapses, the membranes of pre and post-synaptic neurons are in very close proximity.
(ii) Electrical current can flow directly from one neuron into the other across the synapses.
(iii) Transmission of an impulse across electrical synapses is very similar to impulse conduction along single axon.
(iv) Electrical synapses pass electrical signal between cells with the use of Ach.
(v) Electrical synapses are fast.
(vi) Electrical synapses are rare in our system.

(ii), (iv) and (v)
(i) and (iii)
(iv) only(iv) only
(i), (v) and (vi)

Question 45 of 136

45. Question

A list of events occurring in the transmission of nerve impulse across the synapse is given below in a random order.
(i) Opening of specific ion channels allows the entry of ions, a new action potential is generated in the post-synaptic neuron.
(ii) Neurotransmitter binds to the receptor on post synaptic membrane.
(iii) Synaptic vesicle fuses with pre-synaptic membrane, neurotransmitter release into synaptic cleft.
(iv) Depolarisation of pre-synaptic membrane.
(v) Arrival of action potential at axon terminal.
Which of the following options represents these events in the correct order?

(v) \(\rightarrow\) (iv) \(\rightarrow\) (iii) \(\rightarrow\) (ii) \(\rightarrow\) (i)
(i) \(\rightarrow\) (ii) \(\rightarrow\) (iii) \(\rightarrow\) (iv) \(\rightarrow\) (v)
(i) \(\rightarrow\) (ii) \(\rightarrow\) (iv) \(\rightarrow\) (iii) \(\rightarrow\) (v)
(v) \(\rightarrow\) (iv) \(\rightarrow\) (iii) \(\rightarrow\) (i) \(\rightarrow\) (ii)

Question 46 of 136

46. Question

The given diagram shows axon terminal. Select the option that correctly matches the steps in transmission of impulses (list i – vii) with the labellings (A-C) in the diagram.

(i) Chemicals called neurotransmitters are released in the synaptic cleft through ion channels.
(ii) When an impulse arrives at the axon terminal, it stimulates the movement of synaptic vesicles.
(iii) Neurotransmitters are endocytosed into the neurons.
(iv) The ion channels close with the binding of neurotransmitters to their specific receptors vesicles.
(v) Synaptic vesicles move toward the membrane where they fuse with the plasma membrane.
(vi) Neurotransmitters are released in the synaptic cleft.
(vii) The released transmitters bind to their specific receptors on the post-synaptic membrane.

\(
\begin{array}{llll}
& \text { A } & \text { B } & \text { C } \\
\text { (a) } & \text { (ii) } & \text { (iii) } & \text { (i) } \\
\text { (b) } & \text { (v) } & \text { (vi) } & \text { (iv) } \\
\text { (c) } & \text { (ii) } & \text { (vi) } & \text { (vii) } \\
\text { (d) } & \text { (v) } & \text { (iii) } & \text { (iv) }
\end{array}
\)

a
b
c
d

Question 47 of 136

47. Question

The given diagram shows axon terminal and synapse. Here A, B, C, D and E respectively represent

Axon terminal, synaptic cleft, synaptic vesicle, neurotransmitters and receptors
Axon terminal, synaptic vesicle, synaptic cleft, receptors and neurotransmitters
Synaptic cleft, synaptic vesicle, axon terminal, neurotransmitters and receptors
Synaptic cleft, axon terminal, synaptic vesicle, neurotransmitters and receptors

Question 48 of 136

48. Question

Which one of the following does not act as a neurotransmitter?

Cortisone
Acetylcholine
Dopamine
Norepinephrine

Question 49 of 136

49. Question

Read the given statements and select the correct option.
(i) Synaptic cleft of neurons secretes adrenaline.
(ii) Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon.
(iii) Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath.
(iv) Spinal and cranial nerves are made of non-myelinated nerve fibres.

Statements (i) and (ii) are correct but statements (iii) and (iv) are incorrect.
Statements (i), (ii) and (iii) are correct but statement (iv) is incorrect.
Statements (iii) and (iv) are correct but statements (i) and (ii) are incorrect.
Statements (ii) and (iii) are correct but statements (i) and (iv) are incorrect.

Question 50 of 136

50. Question

Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that

nerve fibre is insulated by a medullary sheath
sodium pump starts operating only at the cyton and then continues into the nerve fibre
neurotransmitters are released by dendrites and not by axon endings
neurotransmitters are released by the axon endings and not by dendrites

Question 51 of 136

51. Question

Brain depends on blood for the supply of

ATP and glucose
oxygen and ATP
oxygen and glucose
oxygen and electrolytes

Question 52 of 136

52. Question

The given figure shows lateral view of the human brain. Identify the parts labelled as A to E and select the correct option.

\(
\begin{array}{|l|l|l|l|l|l|}
\hline & {\text { A }} & \text { B } & \text { C } & \text { D } & \text { E } \\
\hline \text { (a) } & \begin{array}{l}
\text { Temporal } \\
\text { lobe }
\end{array} & \begin{array}{l}
\text { Corpus } \\
\text { callosum }
\end{array} & \text { Cerebellum } & \begin{array}{l}
\text { Medulla } \\
\text { oblongata }
\end{array} & \text { Frontal lobe } \\
\hline \text { (b) } & \text { Frontal lobe } & \text { Thalamus } & \text { Cerebrum } & \begin{array}{l}
\text { Medulla } \\
\text { oblongata }
\end{array} & \begin{array}{l}
\text { Occipital } \\
\text { lobe }
\end{array} \\
\hline \text { (c) } & \begin{array}{l}
\text { Temporal } \\
\text { lobe }
\end{array} & \text { Pons } & \text { Cerebrum } & \begin{array}{l}
\text { Medulla } \\
\text { oblongata }
\end{array} & \text { Frontal lobe } \\
\hline \text { (d) } & \text { Frontal lobe } & \begin{array}{l}
\text { Corpus } \\
\text { callosum }
\end{array} & \text { Cerebellum } & \begin{array}{l}
\text { Medulla } \\
\text { oblongata }
\end{array} & \begin{array}{l}
\text { Parietal } \\
\text { lobe }
\end{array} \\
\hline
\end{array}
\)

a
b
c
d

Question 53 of 136

53. Question

The correct sequence of meninges from inner to outer side is

duramater \(\rightarrow\) arachnoid membrane \(\rightarrow\) piamater
duramater \(\rightarrow\) piamater \(\rightarrow\) arachnoid membrane
piamater \(\rightarrow\) arachnoid membrane \(\rightarrow\) duramater
arachnoid membrane \(\rightarrow\) duramater \(\rightarrow\) piamater

Question 54 of 136

54. Question

What is the space between the arachnoid and piamater called?

Supra-arachnoid space
Sub-arachnoid space
Subdural space
Meninges

Question 55 of 136

55. Question

The given figure shows a section of brain. Identify the parts labelled as A, B, C and D and match them with the names ( i – vii) given below.
(i) Arachnoid membrane
(ii) Subdural space
(iii) Duramater
(iv) Bone
(vi) Grey matter
(v) White matter
(vii) Piamater

\(
\begin{array}{lllll}
& \text { A } & \text { B } & \text { C } & \text { D } \\
\text { (a) } & \text { (iii) } & \text { (ii) } & \text { (vi) } & \text { (v) } \\
\text { (b) } & \text { (i) } & \text { (ii) } & \text { (iii) } & \text { (vi) } \\
\text { (c) } & \text { (iii) } & \text { (i) } & \text { (vii) } & \text { (vi) } \\
\text { (d) } & \text { (iv) } & \text { (vii) } & \text { (i) } & \text { (ii) }
\end{array}
\)

a
b
c
d

Question 56 of 136

56. Question

A Corpus callosum connects two

cerebral hemispheres
ventricles of brain
cerebellar hemispheres
optic thalamus

Question 57 of 136

57. Question

The canal that passes through the midbrain is

corpus callosum
hypothalamus
cerebral aqueduct
corpora quadrigemina

Question 58 of 136

58. Question

In the accompanying diagram of a part of the human body, the structures belonging to the central neural system are labelled as

A and C
B and C
A and D
C and D

Question 59 of 136

59. Question

The primary visual area is located in

temporal lobe
occipital lobe
frontal lobe
parietal lobe

Question 60 of 136

60. Question

Which of the following structures is found in diencephalon?

Pons
Basal ganglia
Corpora quadrigemina
Hypothalamus

Question 61 of 136

61. Question

The association areas are responsible for

intersensory association
communication
memory
all of these

Question 62 of 136

62. Question

All sensory information to be registered consciously by the forebrain must pass via the

thalamus
reticular activating system
cerebellum
pons

Question 63 of 136

63. Question

Human body temperature is maintained by

hypothalamus
medulla oblongata
pituitary
cerebral cortex

Question 64 of 136

64. Question

Neurosecretory cells are present in

cerebral hemisphere
cerebellum
hypothalamus
medulla oblongata

Question 65 of 136

65. Question

Which part of the human brain controls the urge for eating and drinking?

Forebrain
Hindbrain
Midbrain
Spinal cord

Question 66 of 136

66. Question

Sense of smell is perceived by

occipital lobe
olfactory lobe
temporal lobe
parietal lobe

Question 67 of 136

67. Question

Anterior choroid plexus is present on the

floor of diencephalon
cerebral hemispheres
roof of diencephalon
roof of medulla oblongata

Question 68 of 136

68. Question

Which function will be lost if occipital lobe is damaged?

Hearing
Vision
Speech
Memory

Question 69 of 136

69. Question

Which of the following is a part of our brain?

Corpora allata
Corpora cardiaca
Corpora adiposa
Corpora quadrigemina

Question 70 of 136

70. Question

The optic lobes in humans are represented by

corpora bigemina
Wernicke's area
corpora arenacea
corpora quadrigemina

Question 71 of 136

71. Question

‘Pons’ connects the

two cerebral hemispheres
two lobes of cerebellum
cerebrum and cerebellum
spinal cord with the brain

Question 72 of 136

72. Question

Cerebellum of brain is concerned with

controlling rapid muscular activities
learning in early stages
maintaining posture, orientation and equilibrium of body
all of these

Question 73 of 136

73. Question

Tree of life is

branchial tree
arbor vitae
lymphatic system
loop of Henle

Question 74 of 136

74. Question

Match column I with column II and select the correct option from the given codes.

\(
\begin{array}{|l|l|c|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { Cerebrum } & \text { (i) } & \text { Controls the pituitary } \\
\hline \text { B. } & \text { Cerebellum } & \text { (ii) } & \text { Controls vision and hearing } \\
\hline \text { C. } & \text { Hypothalamus } & \text { (iii) } & \text { Controls the rate of heart beat } \\
\hline \text { D. } & \text { Midbrain } & \text { (iv) } & \text { Seat of intelligence } \\
\hline & & \text { (v) } & \text { Maintains body posture } \\
\hline
\end{array}
\)

A-(v), B-(iv), C-(ii), D-(iii)
A-(iv), B-(v), C-(ii), D-(i)
A-(v), B-(iv), C-(i), D-(iii)
A-(iv), B-(v), C-(i), D-(ii)

Question 75 of 136

75. Question

Which of the following statements is correct regarding cerebellum?

It is a part of hindbrain.
It consists of two cerebellar hemisphere and a vermis.
Arbor vitae is present in cerebellum.
All of these

Question 76 of 136

76. Question

The part of human hindbrain that is responsible for hand-eye coordination is

cerebellum
pons varolii
medulla oblongata
thalamus

Question 77 of 136

77. Question

The respiratory and cardiac centres are located in

cerebrum
diencephalon
crura cerebri
medulla oblongata

Question 78 of 136

78. Question

Salivation in mammals is under the control of

medulla oblongata
mesencephalon
hypothalamus
cerebellum

Question 79 of 136

79. Question

Refer to the diagram of human brain below.

Which labelled part controls the process of breathing?

A
B
C
D

Question 80 of 136

80. Question

Refer the diagram below.

Which of the following functions is performed by the part labelled ‘ C ‘ in the given figure?

Regulation of body temperature
Regulation of gastric secretions
Learning
Maintaining posture

Question 81 of 136

81. Question

Which of the following parts of brain constitute the brain stem?

Midbrain and hindbrain
Hindbrain and forebrain
Forebrain and midbrain
Forebrain only

Question 82 of 136

82. Question

Cell bodies of neurons bringing afferent information into the spinal cord are located in

dorsal root ganglia
ventral root ganglia
grey matter of the spinal cord
white matter of the spinal cord

Question 83 of 136

83. Question

Which of the following has \(\mathrm{H}\)-shaped grey matter?

Cerebrum
Medulla oblongata
Cerebellum
Spinal cord

Question 84 of 136

84. Question

What is the correct path of a reflex arc?

Sensory stimulus \(\rightarrow\) Dendrite \(\rightarrow\) Axon
Motor nerves \(\rightarrow\) Acetylcholine \(\rightarrow\) Adjustor neuron
Efferent nerves \(\rightarrow\) Connector nerves \(\rightarrow\) Motor nerves
Afferent nerves \(\rightarrow\) Efferent nerves \(\rightarrow\) Connector nerves

Question 85 of 136

85. Question

For good reflex actions we require intact

spinal cord
hypothalamus
medulla oblongata
cerebellum.
cerebellum

Question 86 of 136

86. Question

The path of the reflex arc is shown in the given figure. Identify the different labellings A, B, C, D, E, and F and select the correct option.

\(
\begin{array}{|l|l|l|l|l|l|l|}
\hline {\text { A }} & \text { B } & \text { C } & \text { D } & \text { E } & \text { F } \\
\hline \text { (a) } & \text { Stimulus } & \text { Effector } & \text { sensory nerve } & \text { Motor nerve } & \text { Receptor } & \text { Response } \\
\hline \text { (b) } & \text { Stimulus } & \text { Receptor } & \text { Sensory nerve } & \text { Motor nerve } & \text { Effector } & \text { Response } \\
\hline \text { (c) } & \text { Stimulus } & \text { Effector } & \text { Motor nerve } & \text { Sensory nerve } & \text { Receptor } & \text { Response } \\
\hline \text { (d) } & \text { Stimulus } & \text { Receptor } & \text { Motor nerve } & \text { Sensory nerve } & \text { Effector } & \text { Response } \\
\hline
\end{array}
\)

a
b
c
d

Question 87 of 136

87. Question

Which of the following is an example of a conditioned reflex?

Hand withdraws when pierced with a needle
Eyes close, when anything enters into them
During digestion, food goes forward in alimentary canal
Trained dog salivates when you ring a bell

Question 88 of 136

88. Question

Which of the following is not a reflex action?

Salivation
Sweating
Withdrawal of hand when pinched by needle
None of these

Question 89 of 136

89. Question

The given diagrammatic representation of reflex action shows knee jerk reflex.

Identify the parts labelled as A to E and select the correct option.

\(
\begin{array}{|l|l|l|l|l|l|}
\hline & {\text { A }} & \text { B } & \text { C } & \text { D } & \text { E } \\
\hline \text { (a) } & \begin{array}{l}
\text { Dorsal root } \\
\text { ganglion }
\end{array} & \begin{array}{l}
\text { White } \\
\text { matter }
\end{array} & \text { Grey matter } & \begin{array}{l}
\text { Afferent } \\
\text { pathway }
\end{array} & \begin{array}{l}
\text { Efferent } \\
\text { pathway }
\end{array} \\
\hline \text { (b) } & \begin{array}{l}
\text { Dorsal root } \\
\text { ganglion }
\end{array} & \begin{array}{l}
\text { White } \\
\text { matter }
\end{array} & \text { Grey matter } & \begin{array}{l}
\text { Efferent } \\
\text { pathway }
\end{array} & \begin{array}{l}
\text { Afferent } \\
\text { pathway }
\end{array} \\
\hline \text { (c) } & \begin{array}{l}
\text { Ventral root } \\
\text { ganglion }
\end{array} & \text { Grey matter } & \text { White matter} & \begin{array}{l}
\text { Efferent } \\
\text { pathway }
\end{array} & \begin{array}{l}
\text { Afferent } \\
\text { pathway }
\end{array} \\
\hline \text { (d) } & \begin{array}{l}
\text { Ventral root } \\
\text { ganglion }
\end{array} & \begin{array}{l}
\text { White } \\
\text { matter }
\end{array} & \text { Grey matter } & \begin{array}{l}
\text { Efferent } \\
\text { pathway }
\end{array} & \begin{array}{l}
\text { Afferent } \\
\text { pathway }
\end{array} \\
\hline
\end{array}
\)

a
b
c
d

Question 90 of 136

90. Question

Olfactory receptors are present in

eye
nose
ear
skin

Question 91 of 136

91. Question

Taste buds contain

gustatory receptors
olfactory receptors
photoreceptors
phonoreceptors

Question 92 of 136

92. Question

Refer to the given diagram. Match the labelled parts (A-J) with their functions and select the correct option.
(i) Carries nerve signals to the brain
(ii) Regulates the size of the pupil to let more or less light into the eye
(iii) Changes the shape of the lens
(iv) Photoreceptors are concentrated at this point

(i)-B, (ii)-D, (iii)-F, (iv)-H
(i)-J, (ii)-G, (iii)-I, (iv)-C
(i)-A, (ii)-C, (iii)-E, (iv)-G
(i)-G, (ii)-D, (iii)-C, (iv)-E

Question 93 of 136

93. Question

Match column I with column II and select the correct option from the given codes.

\(
\begin{array}{|l|l|c|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { Cornea } & \text { (i) } & \begin{array}{l}
\text { Provides opening for light to } \\
\text { enter }
\end{array} \\
\hline \text { B. } & \text { Iris } & \text { (ii) } & \begin{array}{l}
\text { Transduces blue, green and } \\
\text { red light }
\end{array} \\
\hline \text { C. } & \text { Lens } & \text { (iii) } & \begin{array}{l}
\text { Controls the amount of light } \\
\text { that enters }
\end{array} \\
\hline \text { D. } & \text { Optic nerves } & \text { (iv) } & \text { Alters the shape of lens } \\
\hline \text { E. } & \text { Pupil } & \text { (v) } & \text { Transmit information to the CNS } \\
\hline \text { F. } & \text { Ciliary muscles } & \text { (vi) } & \text { Focus light directly on retina } \\
\hline \text { G. } & \text { Fovea } & \text { (vii) } & \text { Bends light and protects inner eye } \\
\hline
\end{array}
\)

A-(vii), B-(iii), C-(vi), D-(v), E-(i), F-(iv), G-(ii)
A-(i), B-(ii), C-(iii), D-(iv), E-(v), F-(vi), G-(vii)
A-(vii), B-(vi), C-(v), D-(iv), E-(iii), F-(ii), G-(i)
A-(vii), B-(iv), C-(vi), D-(v), E-(i), F-(iii), G-(ii)

Question 94 of 136

94. Question

Cornea transplant in humans is almost never rejected. This is because

it is composed of enucleated cells
it is a non-living layer
its cells are least penetrable by bacteria
it has no blood supply

Question 95 of 136

95. Question

Cornea is covered externally by a thin transparent membrane which is called

sclerotic
conjunctiva
choroid
none of these

Question 96 of 136

96. Question

The innermost layer of the human eye is

choroid
cornea
sclera
retina

Question 97 of 136

97. Question

The black pigment in the eye, which reduces the internal reflection, is located in

retina
iris
sclerotic
cornea

Question 98 of 136

98. Question

The shape of eye lens is changed by

pupil
iris
optic nerve
ciliary muscle

Question 99 of 136

99. Question

The size of pupil is controlled by the

ciliary muscles
suspensory ligaments
cornea
iris muscles

Question 100 of 136

100. Question

Why is it difficult to differentiate between red and green colour objects in dark or in night?

Rods work well only during daytime.
Cones work well only during daytime.
Rods work well only during night time.
Cones work well only during night time.

Question 101 of 136

101. Question

Which of the following cells are associated with identification of colours in bright light?

Cone cells
Rod cells
Lacrimal cells
Cells of Muller

Question 102 of 136

102. Question

In the chemistry of vision in mammals, the photosensitive substance is called

rhodopsin
sclerotin
melanin
none of these

Question 103 of 136

103. Question

Which one of the following is the correct difference between rod cells and cone cells of our retina?

\(
\begin{array}{|c|c|c|c|}
\hline & \text { Type } & \text { Rod Cells } & \text { Cone Cells } \\
\hline a . & \text { Distribution } & \begin{array}{c}
\text { More concentrated in centre } \\
\text { of retina }
\end{array} & \text { Evenly distributed all over retina } \\
\hline b . & \text { Visual acuity } & \text { High } & \text { Low } \\
\hline c . & \text { Visual pigment contained } & \text { lodopsin } & \text { Rhodopsin } \\
\hline d . & \text { Overall function } & \text { Vision in poor light } & \begin{array}{c}
\text { Colour vision and detailed } \\
\text { vision in bright light }
\end{array} \\
\hline
\end{array}
\)

a
b
c
d

Question 104 of 136

104. Question

The point in eye of mammals from which optic nerves and blood vessels leave the eye ball is called

yellow spot
blind spot
pars optica
green spot

Question 105 of 136

105. Question

Blind spot in vertebrate eye is the place where

there are no cones
there are no rods
there are neither rods nor cones
retina is absent

Question 106 of 136

106. Question

The depression in the retina of eye which lodges only the cones is called

blind spot
fovea centralis
fenestra rotunda
red nuclei

Question 107 of 136

107. Question

Retina is most sensitive at

macula lutea
fovea centralis
optic disc
periphery

Question 108 of 136

108. Question

The fluid-filled in the space between lens and cornea is termed as

vitreous humour
aqueous humour
synovial fluid
CSF

Question 109 of 136

109. Question

A list of steps involved in the mechanism of vision is given below in a random order.
(i) Neural impulses are analysed and the image formed on the retina is recognised by the visual cortex.
(ii) Membrane permeability changes.
(iii) Ganglion cells are excited.
(iv) Bipolar cells are depolarised.
(v) Action potentials (impulse) are transmitted by optic nerves to visual cortex.
(vi) Potential differences are generated in the photoreceptor cells.
(vii) Light energy causes a change in the shape of rhodopsin, leading to the dissociation of retinal (an aldehyde of vitamin A) from opsin (a protein).
(viii) The structure of opsin is changed.
Which of the following options represents these events in the correct order?

(i), (ii), (iii), (iv), (v), (vi), (vii), (viii)
(viii), (vii), (vi), (v), (iv), (iii), (ii), (i)
(i), (iv), (iii), (ii), (vii), (viii), (vi), (v)
(vii), (viii), (ii), (vi), (iv), (iii), (v), (i)

Question 110 of 136

110. Question

Path taken in the eye ball by light rays is

cornea \(\rightarrow\) conjunctiva \(\rightarrow\) aqueous humour \(\rightarrow\) lens (through pupil) \(\rightarrow\) vitreous humour \(\rightarrow\) retina
conjunctiva \(\rightarrow\) cornea \(\rightarrow\) lens (through pupil) \(\rightarrow\) aqueous humour \(\rightarrow\) vitreous humour \(\rightarrow\) retina
conjunctiva \(\rightarrow\) cornea \(\rightarrow\) vitreous humour \(\rightarrow\) lens (through pupil) \(\rightarrow\) aqueous humour \(\rightarrow\) retina
conjunctiva \(\rightarrow[latex] cornea [latex]\rightarrow\) aqueous humour \(\rightarrow\) lens (through pupil) \(\rightarrow\) vitreous humour \(\rightarrow\) retina.

Question 111 of 136

111. Question

The light stricking the retina generates nerve impulse. Which of the following options correctly describes the path of light?

Photosensory cells \(\rightarrow\) Bipolar neurons \(\rightarrow\) Ganglionic cells \(\rightarrow\) Sensory nerves
Sensory nerves \(\rightarrow\) Bipolar neurons \(\rightarrow\) Ganglionic cells \(\rightarrow\) Photosensory cells
Sensory nerves \(\rightarrow\) Ganglionic cells \(\rightarrow\) Bipolar neurons \(\rightarrow\) Photosensory cells
Photosensory cells \(\rightarrow\) Ganglionic cells \(\rightarrow\) Bipolar neurons \(\rightarrow\) Sensory nerves

Question 112 of 136

112. Question

A diagram of ear is given here. Identify the parts \(\mathrm{A}\) to \(\mathrm{H}\) and select the correct option.

A – Temporal bone, B – Malleus, C – Incus, D – Stapes, E – Cochlea, F – Eustachian tube, \(\mathrm{G}\) – Tympanic membrane, \(\mathrm{H}\)-External auditory canal
A – Tympanic membrane, B – Malleus, C – Incus, D – Stapes, E – Cochlea, F-Eustachian tube, \(\mathrm{G}\) – Temporal bone, \(\mathrm{H}\) – External auditory canal
A- Tympanic membrane, B – Incus, C – Malleus, D – Stapes, E – Cochlea, F – Eustachian tube, \(\mathrm{G}\) – Temporal bone, \(\mathrm{H}\) – External auditory canal
A – Temporal bone, B – Malleus, C – Incus, D – Cochlea, E – Stapes, F – Eustachian tube, \(\mathrm{G}\)-Tympanic membrane, \(\mathrm{H}\) – External auditory canal

Question 113 of 136

113. Question

Which of the following statements is incorrect?

Sympathetic neural system controls and coordinates organs which are under voluntary control.
Cranial nerve IX is a mixed nerve.
Malleus is the largest ear ossicle.
All of these

Question 114 of 136

114. Question

Eustachian tube is a passage connecting the

inner ear with pharynx
eye with nose
middle ear with pharynx
middle ear with eye

Question 115 of 136

115. Question

Select the option that correctly matches the structures with its location and function.

\(
\begin{array}{|l|l|l|l|}
\hline & \text { Structure } & \text { Location } & \text { Function } \\
\hline \text { (a) } & \begin{array}{l}
\text { Eustachian } \\
\text { tube }
\end{array} & \begin{array}{l}
\text { Anterior part of } \\
\text { internal ear }
\end{array} & \begin{array}{l}
\text { Equalises air pressure on } \\
\text { either sides of tympanic } \\
\text { membrane }
\end{array} \\
\hline \text { (b) } & \text { Cerebellum } & \text { Midbrain } & \begin{array}{l}
\text { Controls respiration and } \\
\text { gastric secretions }
\end{array} \\
\hline \text { (c) } & \text { Hypothalamus } & \text { Forebrain } & \begin{array}{l}
\text { Controls body } \\
\text { temperature, urge for } \\
\text { eating and drinking }
\end{array} \\
\hline \text { (d) } & \text { Blind spot } & \begin{array}{l}
\text { Near the place } \\
\text { where optic nerve } \\
\text { leaves the eye }
\end{array} & \begin{array}{l}
\text { Rods and cones are } \\
\text { present but inactive here }
\end{array} \\
\hline
\end{array}
\)

a
b
c
d

Question 116 of 136

116. Question

The part of the ear where sound is transduced is

tympanic membrane
ear ossicles
semicircular canals
cochlea

Question 117 of 136

117. Question

Bony labyrinth is filled with a fluid called

endolymph
perilymph
hololymph
juxtalymph

Question 118 of 136

118. Question

A diagrammatic cross-section of a single loop of human cochlea is shown in the given figure.

Which one of the following options correctly represents the names of any three of the labelled parts?

A-Endolymph, B-Tectorial membrane, D-Sensory hair cells
A-Perilymph, B-Tectorial membrane, C-Endolymph
B-Tectorial membrane, C-Perilymph, D-Secretory cells
A-Serum, C-Endolymph, D-Sensory hair cells

Question 119 of 136

119. Question

A small passage that permits continuity between scala vestibuli and scala tympani is

helicotrema
Eustachian tube
cochlea
vestibule

Question 120 of 136

120. Question

Internal ear is filled with

perilymph
endolymph
lymph
both (a) and (b)

Question 121 of 136

121. Question

Match column I with column II and select the correct option from the given codes.

\(
\begin{array}{|l|l|l|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { Pinna } & \text { (i) } & \begin{array}{l}
\text { Collects vibrations in the } \\
\text { air which produces sound }
\end{array} \\
\hline \text { B. } & \text { Ear canal } & \text { (ii) } & \begin{array}{l}
\text { Passage for sound wave } \\
\text { from pinna to ear drum }
\end{array} \\
\hline \text { C. } & \begin{array}{l}
\text { Tympanic } \\
\text { membrane }
\end{array} & \text { (iii) } & \begin{array}{l}
\text { Transfers sound wave to } \\
\text { ear ossicles }
\end{array} \\
\hline \text { D. } & \text { Ear ossicles } & \text { (iv) } & \begin{array}{l}
\text { Increases the efficiency } \\
\text { of transmission of sound } \\
\text { waves to the inner ear }
\end{array} \\
\hline \text { E. } & \text { Cochlea } & \text { (v) } & \text { Has hearing receptors } \\
\hline \text { F. } & \text { Eustachian tube } & \text { (vi) } & \begin{array}{l}
\text { Equalises the pressure on } \\
\text { both sides of ear drum }
\end{array} \\
\hline
\end{array}
\)

A-(i), B-(ii), C-(iii), D-(iv), E-(v), F-(vi)
A-(i), B-(vi), C-(v), D-(iv), E-(iii), F-(ii)
A-(i), B-(ii), C-(iv), D-(iii), E-(v), F-(vi)
A-(i), B-(ii), C-(iii), D-(v), E-(vi), F-(iv)

Question 122 of 136

122. Question

The thin elastic membrane covering the sensory hair cells of the ear is known as

Reissner's membrane
tectorial membrane
basilar membrane
neuro-sensory membrane

Question 123 of 136

123. Question

Which of the following is a correct match of ear part and its function?

Organ of Corti – Increases the efficiency of sound waves
Eustachian tube – Maintains body balance and posture
Tectorial membrane – Determines patterns of vibration of sound waves
Semicircular canal – Equalises the pressure on either sides of the ear drum

Question 124 of 136

124. Question

Macula maintains

static equilibrium
dynamic equilibrium
both (a) and (b)
none of these

Question 125 of 136

125. Question

The structures in a human body that assist in body balance are located in the

outer ear
middle ear
inner ear
Eustachian tube

Question 126 of 136

126. Question

The balancing organ of ear is

lagena and sacculus
semicircular canal and utriculus
semicircular canal and ossicles
otolith and lagena

Question 127 of 136

127. Question

Following is a list of the events (in a random order) that lead to the formation of an auditory impulse.
(i) Vibration is transferred from the malleus to the incus to the stapes.
(ii) Basilar membrane moves up and down.
(iii) Nerve impulse is transmitted in cochlear nerve to auditory cortex of brain for impulse analysis and recognitions.
(iv) Sound waves pass through ear canal.
(v) Stereocilia of hair cells of organ of Corti rub against tectorial membrane.
(vi) Sound waves cause ear drum to vibrate.
(vii) Nerve impulse is generated.
(viii) Vibrations move from fluid of vestibular canal to the fluid of tympanic canal.
(ix) Membrane at oval window vibrates.
Which of the following options represents these events in a correct order?

(iv), (vi), (i), (ix), (viii), (ii), (v), (vii), (iii)
(i), (ii), (iii), (iv), (v), (vi), (vii), (viii), (ix)
(ix), (viii), (vii), (vi), (v), (iv), (iii), (ii), (i)
(iv), (vi), (i), (viii), (ix), (ii), (v), (vii), (iii)

Question 128 of 136

128. Question

Identify the parts labelled as A, B, C and D in the given figure and match the correct names from the list (i-viii) given.

(i) Reissner’s membrane
(ii) Basilar membrane
(iii) Tectorial membrane
(iv) Organ of Corti
(v) Hair cells
(vi) Otolith organ
(vii) Scala media
(viii) Scala vestibuli

\(A \rightarrow(i i) B \rightarrow(v) C \rightarrow(i i i) D \rightarrow(i)\)
\(A \rightarrow(v i i) B \rightarrow(i v) C \rightarrow(i i) D \rightarrow(i i i)\)
\(A \rightarrow(\) vii \() B \rightarrow(\) iv \() C \rightarrow(i) D \rightarrow(\) ii \()\)
\(A \rightarrow(\) viii \() B \rightarrow(v i) C \rightarrow(i) D \rightarrow(\) iii \()\)

Question 129 of 136

129. Question

High frequency sound waves vibrate the basilar membrane

near the oval window
near the helicotrema
in the middle of cochlea
from oval window to helicotrema

Question 130 of 136

130. Question

The sensory receptors that respond to sound, develop receptor potentials when their

hair are bent
pigments absorb pressure
surface proteins are altered by a change in \(\mathrm{pH}\)
sodium-potassium pumps become deactivated

Question 131 of 136

131. Question

If a patient suffers a stroke that destroys the optic tract on the right side of the brain, which of the following visual defects will result?

There will be no vision in the left eye, but vision will be normal in the right eye.
The patient will not perceive images of objects striking the left half of the retina in the left eye.
The patient will not perceive images of objects striking the right half of the retina in the right eye.
Neither eye will perceive objects in the right side of the patient's field of view.

Question 132 of 136

132. Question

Which of the following correctly describes a step in auditory signal transduction?

Displacement of the basilar membrane with respect to the tectorial membrane stimulates stereocilia on the hair cells.
Pressure waves on the oval window cause vibrations of the malleus, which are transferred via the stapes to the round window.
Movement of the stapes causes oscillations in the tympanic membrane, which is in contact with the endolymph.
Oscillations of the stapes against the oval window set up pressure waves in the semicircular canals.

Question 133 of 136

133. Question

Among the following characteristics, indicate the corre combinations applicable to conditional reflex.
P. Acquired by practice or learning.
Q. Not acquired by birth.
R. Does not abolish by lack of practice.
S. Participation of cerebral cortex.
T. Originates spontaneously.

P, Q, R
P, Q, S
P, R, T
Q, R, T

Question 134 of 136

134. Question

Following is the figure of a sagittal section of a human brain. Match the labelled parts with the respective statements given and select the correct option.
(i) Consists of fibre tracts that interconnect left and right hemispheres
(ii) Secretes a hormone melatonin
(iii) Alcohol interferes with the function of this part
(iv) Contains centres which control respiration, cardiovascular reflexes and gastric secretions

A-(ii), B-(iii), C-(i), D-(iv)
A-(iv), B-(i), C-(iii), D-(ii)
A-(iii), B-(ii), C-(iv), D-(i)
A-(i), B-(iv), C-(ii), D-(iii)

Question 135 of 136

135. Question

Select the answer with the correct matching of cranial nerve, its nature, origin and functions.

\(
\begin{array}{|c|c|c|c|c|}
\hline & \begin{array}{l}
\text { Cranial } \\
\text { nerve }
\end{array} & \text { Nature } & \text { Origin } & \text { Functions } \\
\hline \text { (a) } & \text { Trigeminal } & \text { Motor } & \begin{array}{l}
\text { Floor } \\
\text { of mid. } \\
\text { brain }
\end{array} & \begin{array}{l}
\text { Skin sensation, } \\
\text { tongue movement }
\end{array} \\
\hline \text { (b) } & \text { Oculomotor } & \text { Motor } & \begin{array}{l}
\text { Floor } \\
\text { of mid- } \\
\text { brain }
\end{array} & \begin{array}{l}
\text { Movement } \\
\text { of eyeball } \\
\text { and power of } \\
\text { accommodation }
\end{array} \\
\hline \text { (c) } & \text { Abducens } & \text { Sensory } & \text { Pons } & \begin{array}{l}
\text { Movement } \\
\text { of eyeball } \\
\text { and power of } \\
\text { accommodation }
\end{array} \\
\hline \text { (d) } & \text { Hypoglossal } & \text { Motor } & \text { Pons } & \begin{array}{l}
\text { Swallowing and } \\
\text { salivation }
\end{array} \\
\hline
\end{array}
\)

a
b
c
d

Question 136 of 136

136. Question

Refer to the given figure and select the correct option regarding it.

It is unipolar in ageing cells.
It is of only two types; dendritic and axonic.
It is not physically connected with other cell of its type.
It possesses multiple nuclei.

CLASS-XI BIOLOGY + NEET

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