PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Excitability
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Elasticity
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Extensibility
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Contractility
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Detailed explanation-1: -Answer and Explanation: The correct answer is b. extensibility. The property of muscle that gives it the ability to stretch without damage is extensibility. Extensibility is one of the most important characteristics of muscle tissues.
Detailed explanation-2: -Extensibility is the ability to extend or stretch. Muscle cells shorten when contracting, but they can stretch, even beyond their resting length, when relaxed. Elasticity is the ability of a muscle cell to recoil and resume its resting length after stretching.
Detailed explanation-3: -Contractility refers to the capacity of muscle to contract or shorten forcefully. Muscles can be stretched to their normal resting length and beyond to a limited degree. This is because of extensibility. If muscles are stretched, they recoil to their original resting length because of its elasticity.