Support and Movement | Sindh Mdcat NTS Past Papers MCQs | mosaicbro.com

Support and Movement | Sindh Mdcat NTS Past Papers MCQs

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36 Whenever a muscle contracts, a sarcomere can be shorten up to ______ % of its total length.
Correct Answer: C
Explanation: Sarcomeres shorten by ~30–35% during maximal contraction.
37 Formation of ______ with the faster break down of glucose and glycogen to compensate energy requirements in aerobic respirations.
Correct Answer: C
Explanation: Anaerobic glycolysis produces lactic acid when oxygen is limited.
38 The axial skeleton of an adult human includes:
Correct Answer: D
Explanation: The axial skeleton comprises the skull, vertebral column, ribs, and sternum.
39 The total number of bones in a human's skeleton is
Correct Answer: B
Explanation: Adults typically have 206 bones (varies with sesamoid bones).
40 Each myosin filament is surrounded by:
Correct Answer: B
Explanation: Each myosin thick filament is encircled by 6 actin thin filaments in a hexagonal arrangement.
41 The number of tarsals and metatarsals in human feet are:
Correct Answer: A
Explanation: Each foot has 7 tarsals and 5 metatarsals (total per foot: 7 + 5 = 12; both feet: 24, but options suggest per-foot counts).
42 Which bones meet at the elbow joint and what kind of movement do they allow?
Correct Answer: D
Explanation: The elbow (humerus-ulna) is a hinge joint permitting back-and-forth (flexion/extension) movement.
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