PHYSIOLOGY
MUSCLE STRUCTURE FUNCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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allows the muscle to return to its original shape after it has contracted or stretched
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ability to be stretched
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muscle fibers become short and thick
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ability to respond to stimulus
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Detailed explanation-1: -The muscles become shorter and thicker because of contraction.
Detailed explanation-2: -Muscle contraction occurs when sarcomeres shorten, as thick and thin filaments slide past each other, which is called the sliding filament model of muscle contraction.
Detailed explanation-3: -Muscles are fibrous tissues that has the ability to contract. Muscles contract and relax resulting in movement of limbs. Muscles become shorter, stiffer and thicker when it contracts. It becomes longer and thinner on relaxation.
Detailed explanation-4: -During the course of ‘isometric’ contractions, the muscle fibres shortened by stretching the compliant tendons, until the muscle fibres could no longer produce enough force to stretch the tendons further.