What is the functional unit of a skeletal muscle called?

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Quizplus · Accepted Answer

A sarcomere is the functional unit of a skeletal muscle. It is the basic contractile unit of a muscle fiber and is composed of overlapping thick and thin filaments that slide past each other during muscle contractions. The sarcoplasmic reticulum is a specialized type of endoplasmic reticulum found in muscle cells that stores and releases calcium ions, which play a crucial role in muscle contraction. A myofibril is a long, cylindrical organelle that runs through a muscle fiber and contains the sarcomeres. Myofilaments are the individual protein filaments (thick and thin) that make up the sarcomere.

What Is the Functional Unit of a Skeletal Muscle Called