Q. No.With respect to the human upper limb, identify the incorrectly matched pair:
1. Number of bones in arm: 1
2. Number of bones in forearm: 2
3. Number of bones in wrist: 10
4. Number of bones in fingers: 14
1. Number of bones in arm: 1
2. Number of bones in forearm: 2
3. Number of bones in wrist: 10
4. Number of bones in fingers: 14
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Which of the following joints would allow no movement?
1. Fibrous joint
2. Cartilaginous joint
3. Synovial joint
4. Ball and socket joint
The pivot joint between the atlas and axis is a type of
1. fibrous joint
2. cartilaginous joint
3. synovial joint
4. saddle joint
Name the ion responsible for the unmasking of active sites for myosin for cross-bridge activity during muscle contraction.
| 1. | Calcium | 2. | Magnesium |
| 3. | Sodium | 4. | Potassium |
Lack of relaxation between successive stimuli in sustained muscle contraction is known as
1. fatigue
2. tetanus
3. tonus
4. spasm
Which of the following is not a function of the skeletal system?
1. Production of erythrocytes
2. Storage of minerals
3. Production of body heat
4. Locomotion
Select the correct matching of the type of the joint with the example in the human skeletal system
1. Cartilaginous joint - between frontal and parietal
2. Pivot joint - between third and fourth Cervical vertebrae
3. Hinge joint - between humerus and pectoral girdle
4. Gliding joint - between carpals
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In human body, which one of the following is anatomically correct?
1. Floating ribs-2 pairs
2. Collar bones-3 pairs
3. Salivary glands-1 pair
4. Cranial nerves-10 pairs
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The contractile protein of skeletal muscle involving ATPase activity is:
1. tropomyosin
2. myosin
3. α-actinin
4. troponin
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If a stimulus, several times greater than the threshold stimulus, is provided to a muscle fiber, it will
1. Contract with a larger force
2. Contract with a smaller force
3. Contract with the same force
4. Undergo tetany
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