Q. No.The first cervical vertebra in humans is known as the
1.
atlas
2.
axis
3.
vertebra prominens
4.
synsacrum
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Situated between the two hip bones of the pelvis, sacrum is a triangular bone in the lower back formed from fusion of:
| 1. | 3 vertebrae | 2. | 5 vertebrae |
| 3. | 7 vertebrae | 4. | 12 vertebrae |
The pectoral girdle is composed of
| 1. | coxa and femur | 2. | scapula and humerus |
| 3. | scapula and clavicle | 4. | clavicle and sternum |
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The two processes on the dorsal surface of the scapula are the:
| 1. | glenoid and infraspinatus | 2. | obturator and coracoid |
| 3. | coracoid and acromion | 4. | capitulum and trochlea |
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Almost all mammals have seven
| 1. | cervical vertebrae | 2. | carpal bones |
| 3. | cranial bones | 4. | sacral vertebrae |
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There are 8 and 7 bones respectively in:
| 1. | tarsal [ankle] and carpal [wrist] |
| 2. | carpal[wrist] and tarsal[ankle] |
| 3. | neurocranium and facial skeleton |
| 4. | facial skeleton and neurocranium |
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The correct statement regarding myofibril would be:
| 1. | It is the name for a muscle cell. |
| 2. | It contains sarcoplasmic reticulum. |
| 3. | It is made up of many sarcomeres. |
| 4. | It is a bundle of muscle cells. |
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Myosin myofilaments are
1. made up of thick and thin myofilaments.
2. found only in the H zone.
3. not seen in the H zone.
4. attached to filaments that form the M line.
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Identify the correct statement:
1. Tropomyosin is found in two forms – monomeric G and polymeric F.
2. The head of the myosin molecule binds to an active site on G actin.
3. ATPase is present in troponin A.
4. Actin molecules do not move during muscle contraction.
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Arrange the following events in correct chronological order:
| a: | acetylcholine hydrolyses into acetate and choline |
| b: | acetylcholine diffuses across the synaptic cleft |
| c: | Impulse reaches the terminal endings of the motor neuron |
| d: | acetylcholine binds to its receptor on motor end plate |
| e: | sarcolemma gets depolarized |
| 1. | b, c, d, a, e | 2. | c, b, d, e, a |
| 3. | c, d, b, a, e | 4. | d, e, b, a, c |
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