Practice Corner MCQs

Question 1 of 109

1. Question

Read the following statements and select the correct option.
Statement 1: Locomotion is the movement of an individual from one place to another.
Statement 2: All movements are locomotions but all locomotions are not movements.

Both statements 1 and 2 are correct.
Statement 1 is correct but statement 2 is incorrect.
Statement 1 is incorrect but statement 2 is correct.
Both statements 1 and 2 are incorrect.

Question 2 of 109

2. Question

Microfilaments are involved in

amoeboid movement
ciliary movement
muscular movement
both (a) and (b)

Question 3 of 109

3. Question

The amoeboid movement is found in

leucocytes
phagocytes
macrophages
all of these

Question 4 of 109

4. Question

Passage of ova through female reproductive tract is facilitated by

ciliary movement
amoeboid movement
flagellar movement
cyclosis

Question 5 of 109

5. Question

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

\(
\begin{array}{|l|l|l|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { Amoeboid movement } & \text { (i) } & \text { Limbs } \\
\hline \text { B. } & \text { Ciliary movement } & \text { (ii) } & \text { Leucocytes } \\
\hline \text { C. } & \text { Flagellar movement } & \text { (iii) } & \text { Trachea } \\
\hline \text { D. } & \text { Muscular movement } & \text { (iv) } & \text { Spermatozoa } \\
\hline
\end{array}
\)

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

a
b
c
d

Question 6 of 109

6. Question

The type of muscle present in our

heart is involuntary and unstriated smooth muscle
intestine is striated and involuntary
thigh is striated and voluntary
upper arm is smooth muscle and fusiform in shape

Question 7 of 109

7. Question

Which of the following is the most abundant mineral element in the skeletal muscle?

Sodium
Magnesium
Potassium
Phosphorus

Question 8 of 109

8. Question

The type of muscle fibre present in the wall of alimentary canal is

smooth muscle fibre
striped muscle fibre
cardiac muscle fibre
both (a) and (b)

Question 9 of 109

9. Question

Read the following statements carefully and select the correct ones.
(i) Cardiac fibres are branched with one or more nuclei.
(ii) Smooth muscles are unbranched and cylindrical.
(iii) Skeletal muscles can be branched or unbranched.
(iv) Smooth muscles are non-striated.

Only (iv)
(ii) and (iii)
(iii) and (iv)
Only (iii)

Question 10 of 109

10. Question

Which of the following statements is incorrect?

Smooth muscles are found in urinary bladder, alimentary canal and genital tract.
A striated muscle is a syncytium, i.e., a multinucleate structure.
The cytoplasm of striated muscle is called endoplasm.
The plasma membrane and ER of striated muscles are called sarcolemma and sarcoplasmic reticulum respectively.

Question 11 of 109

11. Question

Dark bands are

A-band
I-band
B-band
Z-line

Question 12 of 109

12. Question

What is sarcomere?

Part between two H-lines
Part between two A-bands
Part between two I-bands
Part between two Z-lines

Question 13 of 109

13. Question

The functional unit of contractile system in a striated muscle is

sarcomere
Z-band
cross bridge
myofibril

Question 14 of 109

14. Question

Given below is the figure of a sarcomere. Identify the parts labelled as A to D and select the correct option.

\(
\begin{array}{|l|l|l|l|l|}
\hline & A & B & C & D \\
\hline \text { (a) } & A \text {-band } & Z \text {-line } & H \text {-zone } & I \text {-band } \\
\hline \text { (b) } & A \text {-band } & H \text {-line } & Z \text {-zone } & I \text {-band } \\
\hline \text { (c) } & I \text {-band } & H \text {-line } & Z \text {-zone } & A \text {-band } \\
\hline \text { (d) } & I \text {-band } & Z \text {-line } & H \text {-zone } & A \text {-band } \\
\hline
\end{array}
\)

a
b
c
d

Question 15 of 109

15. Question

Which of the following statements about the striated muscles is incorrect?

In the centre of each I-band is an elastic fibre (Z-line) which bisects it.
Thin filaments are firmly attached to the Z-line.
M-line is a fibrous membrane in the middle of A-band.
None of these

Question 16 of 109

16. Question

Which of the following sarcomeres is labelled correctly?

a
b
c
d

Question 17 of 109

17. Question

The given figure represents the histology of a striated muscle. Identify the parts labelled as A and B and select the correct option.

\(
\begin{array}{|l|l|l|l|l|}
\hline & A & B & C & D \\
\hline \text { (a) } & \text { Sarcoplasm } & \text { Sarcolemma } & \text { Dark band } & \text { Light band } \\
\hline \text { (b) } & \text { Dark band } & \text { Myofibril } & \text { Nucleus } & \text { Light band } \\
\hline \text { (c) } & \text { Light band } & \text { Myofibrill } & \text { Nucleus } & \text { Dark band } \\
\hline \text { (d) } & \text { Nucleus } & \text { Dark band } & \text { Light band } & \text { Myofibril } \\
\hline
\end{array}
\)

a
b
c
d

Question 18 of 109

18. Question

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

\(
\begin{array}{|l|l|l|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \begin{array}{l}
\text { Structural and functional unit } \\
\text { of a myofibril }
\end{array} & \text { (i) } & \text { H-zone } \\
\hline \text { B. } & \text { Protein of thin filament } & \text { (ii) } & \text { Myosin } \\
\hline \text { C. } & \text { Protein of thick filament } & \text { (iii) } & \text { Sarcomere } \\
\hline \text { D. } & \begin{array}{l}
\text { The central part of thick } \\
\text { filament not overlapped by } \\
\text { thin filament }
\end{array} & \text { (iv) } & \text { Actin } \\
\hline
\end{array}
\)

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

Question 19 of 109

19. Question

Read the given statements and select the correct option.
Statement 1: The thick filament consists mainly of protein myosin.
Statement 2: Myosin and actin together form a contractile apparatus.

Both statements 1 and 2 are correct.
Statement 1 is correct but statement 2 is incorrect.
Statement 1 is incorrect but statement 2 is correct.
Both statements 1 and 2 are incorrect.

Question 20 of 109

20. Question

Which of the following contractile proteins contributes \(55 \%\) of muscle protein by weight?

Tropomyosin
Troponin
Myosin
Actin

Question 21 of 109

21. Question

The given figure shows an actin (thin) filament. Identify the labelled parts A, B and C and select the correct option.

\(
\begin{array}{|l|l|l|l|}
\hline & A & B & C \\
\hline \text { (a) } & \text { Tropomyosin } & \text { Troponin } & \text { F-actin } \\
\hline \text { (b) } & \text { Troponin } & \text { Myosin } & \text { Tropomyosin } \\
\hline \text { (c) } & \text { Troponin } & \text { Tropomyosin } & \text { Myosin } \\
\hline \text { (d) } & \text { Troponin } & \text { Tropomyosin } & \text { F-actin } \\
\hline
\end{array}
\)

a
b
c
d

Question 22 of 109

22. Question

Fill up the blanks in the following sentence by selecting the correct option.
The thin filaments of myofibril contain (A) actin and two filaments of (B) protein along with (C) protein for masking the binding site for myosin.

\(
\begin{array}{|l|l|l|l|}
\hline & A & B & C \\
\hline \text { (a) } & 1 F & \text { troponin } & \text { tropomyosin } \\
\hline \text { (b) } & 1 F & \text { tropomyosin } & \text { troponin } \\
\hline \text { (c) } & 2 F & \text { troponin } & \text { tropomyosin } \\
\hline \text { (d) } & 2 F & \text { tropomyosin } & \text { troponin } \\
\hline
\end{array}
\)

a
b
c
d

Question 23 of 109

23. Question

Actin binding sites are located on

troponin
tropomyosin
meromyosin
both (b) and (c)

Question 24 of 109

24. Question

The given figure represents

myosin polymer
actin polymer
myosin monomer
actin monomer

Question 25 of 109

25. Question

Which of the following statements are correct regarding muscle proteins?
(i) Actin is a thin filament and is made up of two F-actins.
(ii) The complex protein, tropomyosin is distributed at regular intervals on the troponin.
(iii) Myosin is a thick filament which is also a polymerised protein.
(iv) The globular head of meromyosin consists of light meromyosin (LMM)

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

Question 26 of 109

26. Question

Which of the following statements about the molecular arrangement of actin and myosin in myofibrils is/are incorrect?
(i) Each actin (thin filament) is made of \(2 \mathrm{~F}\) (filamentous) actins.
(ii) F-actin is the polymer of \(\mathrm{G}\) (globular) actin.
(iii) \(2 \mathrm{~F}\)-actins are twisted into a helix.
(iv) Two strands of tropomyosin (protein) run close to F-actins throughout its length.
(v) Troponin molecules (complex proteins) are distributed at regular intervals on the tropomyosin.
(vi) Troponin forms the head of the myosin molecule.
(vii) The myosin is a polymerised protein.

(i), (iii) and (vii)
(ii), (iv) and (v)
Only (vi)
Only (iii)

Question 27 of 109

27. Question

Which one of the following options shows the next stage of muscle contraction after the stage given in question?

a
b
c
d

Question 28 of 109

28. Question

During muscular contraction, which of the following events occur?
(i) \(\mathrm{H}\)-zone disappears
(ii) A-band widens
(iii) I-band reduces in width
(iv) Width of A-band is unaffected
(v) \(\mathrm{M}\)-line and \(\mathrm{Z}\)-line come closer

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

Question 29 of 109

29. Question

The figures given here represent three different conditions of sarcomeres. Identify these conditions and select the correct option.

A – Contracting, B – Relax, C – Maximally contacted
A – Relax, B – Contracting, C – Maximally contacted
A – Maximally contacted, B – Contracting, C – Relax
A – Relax, B – Contracting, C – Contacting

Question 30 of 109

30. Question

Following is a randomly arranged list of events that occur at neuromuscular junction to trigger muscle contraction.
(i) Receptor sites on sarcolemma
(ii) Nerve impulse
(iii) Release of \(\mathrm{Ca}^{2+}\) from sarcoplasmic reticulum
(iv) The neurotransmitter acetylcholine is released
(v) Sarcomere shorten
(vi) Synaptic cleft
(vii) Spread of impulses over sarcolemma on T-tubules Which of the following gives the correct sequence of these steps?

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

Question 31 of 109

31. Question

Which of the following statements is correct regarding changes in muscle fibre from relaxed to contracted state in the given figure?

The length of the thick and thin myofilaments has changed.
Length of \(\mathrm{H}\)-zone increases.
The myosin cross-bridges move on the surface of thin myofilament and the thin and thick myofilaments slide past each other.
Length of the sarcomere remains same.

Question 32 of 109

32. Question

If a muscle undergoes rapid contraction and relaxation, the sarcoplasmic reticulum extension

requires constant plugging in and out of \(\mathrm{Ca}^{2+}\)
rapidly synthesise myosin
does not require energy
all of these

Question 33 of 109

33. Question

Consider the following statements each with one or two blanks.
(i) Repeated activation of the muscles can lead to the accumulation of (A) due to anaerobic breakdown of glycogen in them causing fatigue.
(ii) The globular head of meromyosin is an active ATPase enzyme and has binding sites for \((B)\) and active sites for \((\mathrm{C})\).
(iii) This central part of the thick filament, not overlapped by thin filaments is called the (D).
Which one of the following options correctly fills the concerned blanks?

(A) – glucose, (D) – A-band
(A) – pyruvic acid, (B) – troponin, (C) – myosin
(B) – ATP, (C) – actin, (D) – H-zone
(A) – lactic acid, (D) – I-band

Question 34 of 109

34. Question

Which of the following statements about the mechanism of muscle contraction are correct?
(i) Acetylcholine is released when the neural signal reaches the motor end plate.
(ii) Muscle contraction is initiated by a signal sent by CNS via a sensory neuron.
(iii) During muscle contraction, the isotropic band gets elongated.
(iv) Repeated activation of the muscles can lead to lactic acid accumulation.

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

Question 35 of 109

35. Question

The slow twitch muscle fibres which are rich in myoglobin and have abundant mitochondria are

white skeletal muscles
cardiac muscles
red skeletal muscles
involuntary muscles

Question 36 of 109

36. Question

Identify from the following list, the characteristics of red muscles (A) and white muscles (B) and select the option that correctly segregates the characters.
(i) Less number of mitochondria
(ii) More number of mitochondria
(iii) Sarcoplasmic reticulum is abundant
(iv) Myoglobin content high
(v) Sarcoplamic reticulum moderate
(vi) Aerobic muscles
(vii) Depend on anaerobic respiration for energy
(viii) Less myoglobin content

\(
\begin{array}{|l|l|l|}
\hline & A & B \\
\hline \text { (a) } & \text { (i), (iii), (vii), (viii) } & \text { (ii), (iv), (v), (vi) } \\
\hline \text { (b) } & \text { (ii), (iv), (v), (vi) } & \text { (i), (iii), (vii), (viii) } \\
\hline \text { (c) } & \text { (i), (iii), (iv), (vii) } & \text { (ii), (v), (vi), (viii) } \\
\hline \text { (d) } & \text { (ii), (v), (vi), (viii) } & \text { (i), (iii), (iv), (vii) } \\
\hline
\end{array}
\)

a
b
c
d

Question 37 of 109

37. Question

Myoglobin is present in

all muscle fibres
white muscle fibres
red muscle fibres
none of these

Question 38 of 109

38. Question

Which of the following is a source of energy for muscle contraction?

Actin
ATP
Myosin
Actomyosin

Question 39 of 109

39. Question

The protein whose removal enables myosin to bind actin in smooth muscle is

tropomyosin
caldesmon
myosin light chain kinase
calmodulin

Question 40 of 109

40. Question

During muscle contraction, actin and myosin form

actomyosin
plastosine
actoplasm
myoplasm

Question 41 of 109

41. Question

Which of the following ions help in muscle contraction?

\(\mathrm{K}^{+}\)and \(\mathrm{Mg}^{++}\)
\(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)
\(\mathrm{Ca}^{++}\)and \(\mathrm{Na}^{++}\)
\(\mathrm{Ca}^{++}\)and \(\mathrm{Mg}^{++}\)

Question 42 of 109

42. Question

If a stimulus, several times greater than the threshold stimulus, is provided to a muscle fibre, it will

contract with a larger force
contract with a smaller force
contract with the same force
undergo tetany

Question 43 of 109

43. Question

Which of the following statements is incorrect regarding muscle contraction?

Actin and myosin make actomyosin.
Phosphate reserve comes from phosphocreatine.
Chemical energy is converted into mechanical energy.
Mechanical energy is converted into chemical energy.

Question 44 of 109

44. Question

Upon stimulation of skeletal muscles, calcium is immediately made available for binding to troponin from

blood
lymph
sarcoplasmic reticulum
bone

Question 45 of 109

45. Question

In the resting muscle fibre, tropomyosin partially covers

calcium binding sites on troponin
actin binding sites on myosin
myosin binding sites on actin
calcium binding sites on actin

Question 46 of 109

46. Question

Ends of long bones are covered with

blood cells
cartilages
muscles
ligaments

Question 47 of 109

47. Question

Examine the given diagrammatic view of human skull given below and identify the skull bones labelled from A-D.

\(
\begin{array}{|l|l|l|l|l|}
\hline & A & B & C & D \\
\hline \text { (a) } & \text { Frontal } & \text { Temporal } & \text { Maxilla } & \text { Mandible } \\
\hline \text { (b) } & \text { Occipital } & \text { Frontal } & \text { Mandible } & \text { Maxilla } \\
\hline \text { (c) } & \text { Parietal } & \text { Temporal } & \text { Maxilla } & \text { Mandible } \\
\hline \text { (d) } & \text { Temporal } & \text { Parietal } & \text { Mandible } & \text { Maxilla } \\
\hline
\end{array}
\)

a
b
c
d

Question 48 of 109

48. Question

Which of the following is a bone of skull?

Atlas
Ethmoid
Patella
Phalanges

Question 49 of 109

49. Question

Cranium of human contains

8 bones
14 bones
12 bones
20 bones

Question 50 of 109

50. Question

How many bones form the skeleton of the face?

22
8
10
14

Question 51 of 109

51. Question

In an adult human, how many bones are present as ear ossicles?

4
6
3
None of these

Question 52 of 109

52. Question

Smallest bone in human system is

stapes
malleus
patella
incus

Question 53 of 109

53. Question

Skull of man is

monocondylic
tricondylic
dicondylic
tetracondylic

Question 54 of 109

54. Question

Identify the parts labelled as A to E in the given figure of a vertebral column and select the correct option.

\(
\begin{array}{|l|l|l|l|l|l|}
\hline & A & B & C & D & E \\
\hline \text { (a) } & \begin{array}{l}
\text { Thoracic } \\
\text { vertebra }
\end{array} & \begin{array}{l}
\text { Cervical } \\
\text { vertebrae }
\end{array} & \begin{array}{l}
\text { Lumbar } \\
\text { vertebrae }
\end{array} & \text { Sacrum } & \text { Coccyx } \\
\hline \text { (b) } & \begin{array}{l}
\text { Thoracic } \\
\text { vertebra }
\end{array} & \begin{array}{l}
\text { Cervical } \\
\text { vertebrae }
\end{array} & \begin{array}{l}
\text { Lumbar } \\
\text { vertebrae }
\end{array} & \text { Coccyx } & \text { Sacrum } \\
\hline \text { (c) } & \begin{array}{l}
\text { Lumbar } \\
\text { vertebra }
\end{array} & \begin{array}{l}
\text { Thoracic } \\
\text { vertebra }
\end{array} & \begin{array}{l}
\text { Cervical } \\
\text { vertebrae }
\end{array} & \text { Coccyx } & \text { Sacrum } \\
\hline \text { (d) } & \begin{array}{l}
\text { Cervical } \\
\text { vertebra }
\end{array} & \begin{array}{l}
\text { Thoracic } \\
\text { vertebra }
\end{array} & \begin{array}{l}
\text { Lumbar } \\
\text { vertebrae }
\end{array} & \text { Sacrum } & \text { Coccyx } \\
\hline
\end{array}
\)

a
b
c
d

Question 55 of 109

55. Question

Number of cervical vertebrae in most mammals is

7
6
5
11

Question 56 of 109

56. Question

The cervical vertebra called axis provides head with sideways rotation. This can be because

it is articulated to skull through occipital condyles
it is fused with \(1^{\text {st }}\) vertebra atlas
it is joined through elastic pads of fibrocartilage with other vertebrae, which provide mobility
it contains odontoid process that fits into the odontoid canal of atlas

Question 57 of 109

57. Question

Lumbar vertebrae are found in

neck region
abdominal region
hip region
thorax

Question 58 of 109

58. Question

The vertebral column is connected to the pelvic girdle in the

coccygeal region
lumbar region
sacral region
cervical region

Question 59 of 109

59. Question

Human vertebral column consists of 33 vertebrae and ______ bones.

33
26
27
29

Question 60 of 109

60. Question

Which of the following vertebra is formed from four vertebrae?

Sacrum
Coccyx
Atlas
Axis

Question 61 of 109

61. Question

Which of the following is not a function of vertebral column?

Protects spinal cord and supports the head
Serves as the point of attachment for ribs and musculature of the back
Supports tarsals and metacarpals
Both (b) and (c)

Question 62 of 109

62. Question

Consider the following four statements (i) – (iv) and select the correct option.
(i) Actin is present in thin filament.
(ii) \(\mathrm{H}\)-zone of striated muscle fibre represents both thick and thin filaments.
(iii) There are 11 pairs of ribs in man.
(iv) Sternum is present on ventral side of the body.

\(
\begin{array}{|l|l|l|l|l|}
\hline & \text { (i) } & \text { (ii) } & \text { (iii) } & \text { (iv) } \\
\hline \text { (a) } & \text { F } & \text { F } & \text { T } & \text { F } \\
\hline \text { (b) } & \text { F } & \text { F } & \text { F } & \text { T } \\
\hline \text { (c) } & \text { T } & \text { F } & \text { F } & \text { T } \\
\hline \text { (d) } & \text { T } & \text { F } & \text {T} & \text {F} \\
\hline
\end{array}
\)

a
b
c
d

Question 63 of 109

63. Question

\(11^{\text {th }}\) and \(12^{\text {th }}\) pair of ribs which are imperfectly formed and do not reach the sternum are called

pseudo ribs
false ribs
floating ribs
visceral ribs

Question 64 of 109

64. Question

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

\(
\begin{array}{|c|c|c|c|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { True ribs } & \text { (i) } & 3 \text { pairs } \\
\hline \text { B. } & \text { False ribs } & \text { (ii) } & 2 \text { pairs } \\
\hline \text { C. } & \text { Floating ribs } & \text { (iii) } & 7 \text { pairs } \\
\hline
\end{array}
\)

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

Question 65 of 109

65. Question

The figure given here is of rib cage. Identify the parts labelled as A, B and C and select the correct option.

\(
\begin{array}{|c|c|c|c|}
\hline & A & B & C \\
\hline \text { (a) } & \text { Coccyx } & \text { Ribs } & \text { Vertebral column } \\
\hline \text { (b) } & \text { Sternum } & \text { Ribs } & \text { Vertebral column } \\
\hline \text { (c) } & \text { Scapula } & \text { Ribs } & \text { Vertebral column } \\
\hline \text { (d) } & \text { Tarsal } & \text { Ribs } & \text { Vertebral column } \\
\hline
\end{array}
\)

a
b
c
d

Question 66 of 109

66. Question

The scapula is a large triangular flat bone situated in the dorsal part of the thorax between

second and seventh rib
third and fourth rib
fifth and sixth rib
second and fifth rib

Question 67 of 109

67. Question

Appendicular skeleton includes

girdles and their limbs
vertebrae
skull and vertebral column
ribs and sternum

Question 68 of 109

68. Question

Total number of bones in the forelimb of a man is

24
30
14
21

Question 69 of 109

69. Question

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

\(
\begin{array}{|l|l|l|l|}
\hline & \begin{array}{l}
\text { Column I } \\
\text { (Skeletal part) }
\end{array} & & \begin{array}{l}
\text { Column II } \\
\text { (Number of bones) }
\end{array} \\
\hline \text { A. } & \text { Cranium } & \text { (i) } & 22 \\
\hline \text { B. } & \begin{array}{l}
\text { Skull (Cranial and } \\
\text { facial bones) }
\end{array} & \text { (ii) } & 8 \\
\hline \text { C. } & \text { Face } & \text { (iii) } & 14 \\
\hline \text { D. } & \text { Hindlimb } & \text { (iv) } & 24 \\
\hline \text { E. } & \text { Ribs } & \text { (v) } & 30 \\
\hline
\end{array}
\)

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

Question 70 of 109

70. Question

Study the following flow chart and fill up the blanks by selecting the correct option.

\(
\begin{array}{|l|l|l|l|l|}
\hline & A & B & C & D \\
\hline \text { (a) } & \text { Thoracic skeleton } & \text { Limbs } & \text { Skull } & \text { Ribs } \\
\hline \text { (b) } & \text { Appendicular skeleton } & \text { Skull } & \text { Ribs } & \text { Limbs } \\
\hline \text { (c) } & \text { Appendicular skeleton } & \text { Limbs } & \text { Ribs } & \text { Skull } \\
\hline \text { (d) } & \text { Lumbar skeleton } & \text { Limbs } & \text { Skull } & \text { Ribs } \\
\hline
\end{array}
\)

a
b
c
d

Question 71 of 109

71. Question

Examine the figure of pectoral girdle and forelimb and identify the parts labelled as A, B, C and D.

\(
\begin{array}{|c|c|c|c|c|}
\hline & A & B & C & D \\
\hline \text { (a) } & \text { Clavicle } & \text { Humerus } & \text { Radius } & \text { Carpals } \\
\hline \text { (b) } & \text { Scapula } & \text { Femur } & \text { Ulna } & \text { Tarsals } \\
\hline \text { (c) } & \text { Clavicle } & \text { Femur } & \text { Radius } & \text { Carpals } \\
\hline \text { (d) } & \text { Scapula } & \text { Humerus } & \text { Ulna } & \text { Tarsals } \\
\hline
\end{array}
\)

a
b
c
d

Question 72 of 109

72. Question

Which of the following bones form a link between axial and appendicular skeleton?

First rib
Clavicle
Scapula
Both (a) and (b)

Question 73 of 109

73. Question

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

\(
\begin{array}{|c|l|c|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { Humerus } & \text { (i) } & \text { Thigh } \\
\hline \text { B. } & \text { Pectoral girdle } & \text { (ii) } & \text { Upper arm } \\
\hline \text { C. } & \text { Femur } & \text { (iii) } & \text { Clavicle } \\
\hline & & \text { (iv) } & \text { Acetabulum } \\
\hline & & \text { (v) } & \text { Glenoid cavity } \\
\hline & & \text { (vi) } & \text { Scapula } \\
\hline
\end{array}
\)

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

Question 74 of 109

74. Question

Humerus with its rounded upper end (head) articulates into

acromion process
deitoid cavity
glenoid cavity
acetabulum

Question 75 of 109

75. Question

Acromion process is characteristically found in the ______ of mammals.

pectoral girdle
sperm
pelvic girdle
skull

Question 76 of 109

76. Question

Which of the following components is a part of the pectoral girdle?

Sternum
Acetabulum
Glenoid cavity
Illium

Question 77 of 109

77. Question

The shoulder blade is made of

clavicle
humerus
ilium
scapula

Question 78 of 109

78. Question

Identify the incorrectly matched pair.

\(
\begin{array}{|l|l|}
\hline \text { Pair of skeletal parts } & {\text { Category }} \\
\hline \text { a. Sternum and ribs } & \text { Axial skeleton } \\
\hline \text { b. Clavicle and glenoid cavity } & \text { Pelvic girdle } \\
\hline \text { c. Humerus and ulna } & \text { Appendicular skeleton } \\
\hline \text { d. Malleus and stapes } & \text { Ear ossicles } \\
\hline
\end{array}
\)

a
b
c
d

Question 79 of 109

79. Question

Collar bone is known as

scapula
clavicle
pelvic girdle
chevron bone

Question 80 of 109

80. Question

Acetabulum is located in

collar bone
hip bone
shoulder bone
thigh bone

Question 81 of 109

81. Question

The figure is showing part of right pelvic girdle and lower limb bones. Identify the parts labelled as A to E and select the correct option.

\(
\begin{array}{|l|l|l|l|l|l|}
\hline & A & B & C & D & E \\
\hline \text { (a) } & \text { Sacrum } & \text { Pubis } & \text { Patella } & \text { Metatarsal } & \text { Fibula } \\
\hline \text { (b) } & \text { Ilium } & \text { Ischium } & \text { Femur } & \text { Tibia } & \text { Fibula } \\
\hline \text { (c) } & \text { Ilium } & \text { Ischium } & \text { Femur } & \text { Fibula } & \text { Tibia } \\
\hline \text { (d) } & \text { Ischium } & \text { Ilium } & \text { Patell } & \text { Tibia } & \text { Tarsal } \\
\hline
\end{array}
\)

a
b
c
d

Question 82 of 109

82. Question

Which of the following statements are incorrect regarding a normal human?
(i) The skull is dicondylic.
(ii) Metacarpals are five in numbers.
(iii) Patella is a cup-shaped bone covering and protecting the posterior articular surface of the knee joint.
(iv) Scapula is a large triangular flat bone, situated on the ventral side of the thorax.
(v) The pelvic girdle has two coxal bones.

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

Question 83 of 109

83. Question

The coxal bone of the pelvic girdle is formed by the fusion of

ilium, ischium and pubis
scapula and clavicle
ilium and scapula
ilium, scapula and ischium

Question 84 of 109

84. Question

A cricket player is fast chasing a ball in the field. Which one of the following groups of bones is directly contributing in this movement?

Femur, malleus, tibia, metatarsals
Pelvis, incus, patella, taisals
Sternum, femur, tibia, fibula
Tarsals, femur, metatarsals, tibia

Question 85 of 109

85. Question

Complete the following paragraph by selecting the correct option.
Pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones (i). (ii) and (iii). At the point of fusion of the above bones is a cavity called (iv) to which the thigh bone articulates. The two halves of the pelvic girdle meet ventrally to form the pubic symphysis containing (v) cartilage.

\(
\begin{array}{|l|l|l|l|l|l|}
\hline & \text { (i) } & \text { (ii) } & \text { (iii) } & \text { (iv) } & \text { (v) } \\
\hline \text { (a) } & \text { clavicle } & \text { scapula } & \text { sternum } & \text { glenoid } & \text { hyaline } \\
\hline \text { (b) } & \text { ulna } & \text { radius } & \text { tarsal } & \text { acromion } & \text { fibrous } \\
\hline \text { (c) } & \text { sacrum } & \text { scapula } & \text { clavicle } & \text { glenoid } & \text { yellow} \\
\hline \text { (d) } & \text { ilium } & \text { ischium } & \text { pubis } & \text { acetabulum } & \text { fibrous }\\
\hline
\end{array}
\)

a
b
c
d

Question 86 of 109

86. Question

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

\(
\begin{array}{|l|l|l|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { Smooth muscle } & \text { (i) } & \text { Myoglobin } \\
\hline \text { B. } & \text { Tropomyosin } & \text { (ii) } & \text { Thin filament } \\
\hline \text { C. } & \text { Red muscle } & \text { (iii) } & \text { Sutures } \\
\hline \text { D. } & \text { Skull } & \text { (iv) } & \text { Involuntary } \\
\hline
\end{array}
\)

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

Question 87 of 109

87. Question

The type of joint between the human skull bones is called

cartilaginous joint
hinge joint
fibrous joint
synovial joint

Question 88 of 109

88. Question

Which one of the following is the correct description of a certain part of a normal human skeleton?

Parietal bone and the temporal bone of the skull are joined by fibrous joint.
First vertebra is axis which articulates with the occipital condyles.
The \(9^{\text {th }}\) and \(10^{\text {th }}\) pairs of ribs are called the floating ribs.
Glenoid cavity is a depression to which the thigh bone articulates.

Question 89 of 109

89. Question

What is the name of joint between adjacent vertebrae in a vertebral column?

Cartilaginous joint
Angular joint
Gliding joint
Fibrous joint

Question 90 of 109

90. Question

Synovial joint is exemplified by

pivot joint
hinge joint
ball and socket joint
all of these

Question 91 of 109

91. Question

The joint of femur with pelvic girdle is

hinge joint
non-movable joint
pivot joint
ball and socket joint

Question 92 of 109

92. Question

The joint of radio-ulna with the upper arm is

hinge joint
socket joint
pivot joint
none of these

Question 93 of 109

93. Question

Read the given statements and select the correct option.
Statement 1: Articulation between the occipital condyles and the atlas vertebra forms a hinge joint.
Statement 2 : Hinge joint is a monaxial joint.

Both statements 1 and 2 are correct.
Statement 1 is correct but statement 2 is incorrect.
Statement 1 is incorrect but statement 2 is correct.
Both statements 1 and 2 are incorrect.

Question 94 of 109

94. Question

Which one of the following pairs of structures is correctly matched with their description?

Radius and ulna – Both form parts of knee joint
Joint between – Pivot joint atlas and axis
Shoulder joint – Ball and socket joint and elbow joint
Joint between – Gliding joint maxilla and teeth

Question 95 of 109

95. Question

The joint in which one of the two bones is fixed in its place and bears a peg like process over which the other bone rotates is called

hinge joint
saddle joint
pivot joint
angular joint

Question 96 of 109

96. Question

The joints between the carpal bones are

gliding joints
hinge joints
saddle joints
pivot joints

Question 97 of 109

97. Question

Which of the following pairs is correctly matched?

Hinge joint – Between vertebrae
Gliding joint – Between the tarsals
Cartilaginous joint – Skull bones
Fibrous joint – Between phalanges

Question 98 of 109

98. Question

Match the two columns and select the correct option from the codes given below.

\(
\begin{array}{|c|c|c|c|}
\hline & \begin{array}{c}
\text { Types of } \\
\text { synovial joint }
\end{array} & & \text { Bones involved } \\
\hline \text { A. } & \text { Ball and socket } & \text { (i) } & \begin{array}{l}
\text { Carpal and metacarpal of } \\
\text { thumb }
\end{array} \\
\hline \text { B. } & \text { Hinge } & \text { (ii) } & \text { Atlas and axis } \\
\hline \text { C. } & \text { Pivot } & \text { (iii) } & \text { Frontal and parietal } \\
\hline \text { D. } & \text { Saddle } & \text { (iv) } & \text { Knee } \\
\hline & & \text { (v) } & \text { Humerus and pectoral girdle } \\
\hline
\end{array}
\)

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

Question 99 of 109

99. Question

Which of the following is/are not correctly matched pair(s)?
(i) Ball and socket joint – Between femur and pelvic girdle
(ii) Pivot joint – Between carpal and metacarpal
(iii) Saddle joint – Between atlas and axis
(iv) Gliding joint – Between the carpals
(v) Fibrous joint – In flat skull bones

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

Question 100 of 109

100. Question

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

\(
\begin{array}{|l|l|l|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { Saddle joint } & \text { (i) } & \begin{array}{l}
\text { Metacarpo-phalangeal } \\
\text { joint }
\end{array} \\
\hline \text { B. } & \text { Gliding joint } & \text { (ii) } & \begin{array}{l}
\text { Carpometacarpal joint of } \\
\text { thumb }
\end{array} \\
\hline \text { C. } & \text { Hinge joint } & \text { (iii) } & \text { Between tarsal bones } \\
\hline \text { D. } & \text { Ellipsoid joint } & \text { (iv) } & \text { Knee joint } \\
\hline
\end{array}
\)

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

Question 101 of 109

101. Question

Consider the following statements each with one or two blanks.
(i) Each pectoral girdle consists of a (A) and a (B).
(ii) (C) is a condition of rapid spasms (wild contractions) in muscle due to low \(\mathrm{Ca}^{++}\) in body fluid.
(iii) Each organised skeletal muscle in our body is made of a number of (D) held together by a common collagenous connective tissue layer called (E).
Which one of the following options correctly fills the blanks in any two of the statements?

(C) – Muscular dystrophy, (D) – fascia, (E) – fascicle
(A) – clavicle, (B) – scapula, (C) – Tetany
(A) – ilium, (B) – ischium, (D) – fascicles, (E) – fascia
(C) – Myasthenia gravis, (D) – fascicles, (E) – fascia

Question 102 of 109

102. Question

Which of the following is the correct pairing regarding a specific disorder of muscular or skeletal system?

Muscular dystrophy – Age related shortening of muscles
Osteoporosis – Decrease in bone mass and higher chances of fractures with advancing age
Myasthenia gravis – Autoimmune disorder which inhibits sliding of myosin filaments
Gout – Inflammation of joints due to extra deposition of calcium

Question 103 of 109

103. Question

Imbalances of certain hormones, deficiencies of calcium and vitamin D are the major causative factors of

rheumatoid arthritis
osteoporosis
osteoarthritis
gouty arthritis

Question 104 of 109

104. Question

Read the given statements and select the correct option.
Statement 1 : Inflammation of a skeletal joint may immobilise the movements of the joint.
Statement 2 : This may be caused due to uric acid crystals in the joint cavity and ossification of articular cartilage.

Both statements 1 and 2 are correct.
Statement 1 is correct but statement 2 is incorrect.
Statement 1 is incorrect but statement 2 is correct.
Both statements 1 and 2 are incorrect.

Question 105 of 109

105. Question

The accumulation of uric acid crystals in the region of joints resulting in painful movements causes

fluorosis
gout
arthritis
rheumatoid arthritis

Question 106 of 109

106. Question

What does the given graphical representation show about the mechanism of skeletal muscle contraction?

Summation and fatigue
Tetanisation and fatigue
Summation and tetanisation
Summation and contracture

Question 107 of 109

107. Question

Which of the following correctly characterises a “fastoxidative” type of skeletal muscle fibre?

Few mitochondria and high glycogen content
Less myoglobin quantity and few surrounding capillaries
Low glycolytic enzyme activity and high glycogen store
High myoglobin content and slow rate of contraction

Question 108 of 109

108. Question

Direction : Refer to the given paragraphs to answer questions.
\(P\) is a joint that allows movement in one plane only and shows \(180^{\circ}\) of movement. The movement of car doors resembles the movement of bones between which this joint is present. This type of joint is found in our body at elbow and in skull.
Q joint allows movement in all directions and in more than one plane. This joint controls the movement of the humerus and femur bones. Movement of pestle in a mortar resembles the movement of bones in this joint.

The joints P and Q in the above paragraphs are respectively

hinge joint, pivot joint
pivot joint, ball and socket joint
gliding joint, hinge joint
hinge joint, ball and socket joint

Question 109 of 109

109. Question

Direction : Refer to the given paragraphs to answer questions .
\(P\) is a joint that allows movement in one plane only and shows \(180^{\circ}\) of movement. The movement of car doors resembles the movement of bones between which this joint is present. This type of joint is found in our body at elbow and in skull.
Q joint allows movement in all directions and in more than one plane. This joint controls the movement of the humerus and femur bones. Movement of pestle in a mortar resembles the movement of bones in this joint.

Some of the italicised words are mentioned incorrectly in the paragraphs. Select the correct option regarding them.

Femur should be replaced by tibia.
\(180^{\circ}\) should be replaced by \(360^{\circ}\)
More than should be replaced by only
Skull should be replaced by knee

CLASS-XI BIOLOGY + NEET

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