Pick out the correct match

1. Sternum       - 14

2. Pelvis           - 3

3. Ribs             - 20

4. Face            - 5

Subtopic:  Appendicular Skeleton: Girdle |
 75%
Level 2: 60%+
AIIMS - 2009
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Match Column-I with Column-II:

Column-I Column-II
A.   Structural and functional unit of a myofibril
B.   Protein of thin filament
C.   Protein of thick filament
D.   The central part of thick filament not overlapped by thin filament
I. H-zone
II. Myosin
III. Sarcomere
IV. Actin

1. A - I, B - II, C - III, D - IV

2. A - I, B - III, C - II, D - IV

3. A - I, B - IV, C - III, D - II

4. A - III, B - IV, C - II, D - I

Subtopic:  Skeletal Muscle: Sarcomere |
 94%
Level 1: 80%+
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Light bands (thin filaments) contain actin and are called:

1. A-bands or Isotropic band            

2. A-bands or Anisotropic bands

3.  I-bands or Isotropic bands           

4.  I-bands or Anisotropic bands

Subtopic:  Skeletal Muscle: Sarcomere |
 86%
Level 1: 80%+
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Dark bands (thick filaments) contain myosin and are called:

1. A-bands or Isotropic band            

2. A-bands or Anisotropic bands

3. I-bands or Isotropic bands           

4. I-bands or Anisotropic bands

Subtopic:  Skeletal Muscle: Sarcomere |
 93%
Level 1: 80%+
Hints

Choose the letter from the figure that most appropriately corresponds to the structure:

I.A-band       II. I-band           III.    Sarcomere         IV.     H-zone

V.Myosin       VI.Actin, Troponin, Tropomyosin             VII.   Z –line

1. I - E, II - D, III - F, IV - G, V - B, VI- C, VII - A

2. I - E, II - D, III - C, IV - G, V - B, VI - A, VII - F

3. I - E, II - D, III - F, IV - G, V - C, VI - A, VII - B

4. I - E, II - D, III - F, IV - A, V - B, VI - C, VII - G

Subtopic:  Skeletal Muscle: Sarcomere |
 83%
Level 1: 80%+
Hints

Ca+2 bind ________ in the skeletal muscles and leads to exposure of the binding site for ________ on the filament _______:

1. Troponin, myosin, actin                

2. Troponin, actin, relaxin

3. Actin, myosin, troponin                

4. Tropomysin, myosin, actin

Subtopic:  Excitation Contraction Coupling I |
 83%
Level 1: 80%+
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Following is the figure of actin (thin) filaments. Identify A, B and C:

1. A - Tropomyosin, B - Troponin, C - F-actin

2. A - Troponin, B - Myosin, C - Tropomyosin

3. A - Troponin, B - Tropomyosin, C - Myosin

4. A - Troponin, B - Tropomyosin, C - F-actin

Subtopic:  Skeletal Muscle: Myofilaments |
 78%
Level 2: 60%+
Hints

The above figure is related with myosin monomer (meromyosin). Identify A to C:

1. A - head, B - cross arm, C - GTP binding sites

2.  A - head, B - cross arm, C - Ca+2 binding sites

3.  A - head, B - cross arm, C - ATP binding sites

4.  A - cross arm, B - head, C - ATP binding sites

Subtopic:  Skeletal Muscle: Myofilaments |
 89%
Level 1: 80%+
Hints

Put the following phrases in proper order to describe what occurs at the neuromuscular junction to trigger muscle contraction:

I. Receptor sites on sarcolemma.
II. Nerve impulse.
III. Release of 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


1. II, IV, I, VI, VII, III, V           

2. II, IV, VI, I, VII, III, V

3. I, II, III, IV, V, VI, VII             

4. VII, VI, V, IV, III, II, I

Subtopic:  Excitation Contraction Coupling I |
 64%
Level 2: 60%+
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How many bones make up the human skeleton?

1. 948                

2. 96                            

3. 796                

4. 206

Subtopic:  Human Skeleton: Introduction, Function, Parts |
 98%
Level 1: 80%+
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