PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The outside covering of a muscle cell
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Tubes within the cell that conduct an impulse
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A storage area for calcium
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A storage area for sodium
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Detailed explanation-1: -What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell. It consists of a cell membrane (plasma membrane) and an outer coat made up of a thin layer of polysaccharide (glycocalyx) material with numerous thin collagen fibrils.
Detailed explanation-2: -The outermost sheath of connective tissue covering each muscle is called epimysium. Each muscle is made up of groups of muscle fibers called fascicles surrounded by a connective tissue layer called perimysium.
Detailed explanation-3: -… complex multilayered structure called the sarcolemma. The outermost layer is a fine network of fibrils, which, at the ends of the muscle, extend into the tendons and form the structural link with them. The next layer of the sarcolemma is a foundation, or basement, membrane.
Detailed explanation-4: -Complete answer: The sarcolemma is the cell membrane of the striated muscle fibre cell. It is also known as the myolemma. The function of the sarcolemma is similar to the function of the plasma membrane of eukaryotic cells. The plasma membrane covering the muscle fibre is known as the sarcolemma.