PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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sarcolemma
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sarcoplasm
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sarcomere
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fascicle
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Detailed explanation-1: -A sarcomere is the region from one Z line to the next Z line. Many sarcomeres are present in a myofibril, resulting in the striation pattern characteristic of skeletal muscle. Myofibrils are composed of smaller structures called myofilaments .
Detailed explanation-2: -The area between two Z lines, a sarcomere, can be considered to be the primary structural and functional unit directly responsible for muscle contraction.…
Detailed explanation-3: -A. one Z line to the next Z line.
Detailed explanation-4: -The portion of the myofibril that lies between two successive Z discs is called a sarcomere. Sarcomeres are the contractile elements of the muscle cell, and a myofibril is therefore a long string of sarcomeres organized end to end.
Detailed explanation-5: -The part between the two Z-lines is called a sarcomere.