PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Contractility
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Extensibility
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Fascicity
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None of the above
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Detailed explanation-1: -So, here the correct answer is C) Rhythmicity.
Detailed explanation-2: -Detailed Solution. The correct answer is Sesamoids. Sesamoids are the bones embedded in the tendons.
Detailed explanation-3: -Fascicle arrangements determine what type of movement a muscle can make. For instance, circular muscles act as sphincters, closing orifices. Muscles work in pairs to facilitate movement of the bones around the joints. Agonists are the prime movers while antagonists oppose or resist the movements of the agonists.
Detailed explanation-4: -A skeletal muscle fascicle consists of 20 to 60 fibers surrounded by a connective tissue sheath. A single muscle fiber is innervated by only one motor unit, but there may be two to three motor units within a fascicle. The muscle fibers of one motor unit may be distributed over 100 fascicles.