Muscle Cell: Definition, Types, and Examples

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What is Muscle Cell?

Any of the mature contractile cells that build up muscle tissue are long and tubular. One of the four basic types of animal tissue is muscular tissue. Muscle tissue is made up of specialised cells that can contract. Muscle cells are the name of these cells (also called myocytes or muscle fibers). Because of its lengthy and tubular shape, the muscle cell is also known as the muscle fibre.

Myogenesis is the process through which myoblasts grow into muscle cells. Myofibrils, which are made up of repeating sarcomere portions, make up the muscle cells. Sarcoplasm is the cytoplasm of the muscle cell. The Sarcoplasmic reticulum is the smooth endoplasmic reticulum of muscle cells. Sarcolemma refers to the muscle cell’s plasma membrane. Skeletal myocytes, smooth myocytes, and cardiac myocytes are the three kinds of muscle cells.

Skeletal myocytes (also known as skeletal muscle fibres) are multinucleated, striated cells that make up the skeletal muscles. Skeletal myocytes have myofibrils that are contained inside and connected to the sarcolemma. Smooth myocytes are striated muscle cells that do not have any ridges. They have a spindle form and are elongated.

A cardiac myocyte is a muscle cell with one or two nuclei and myofibrils that are separated from one another by an intercalated disc. The cardiac myocytes are striated in the same way that skeletal myocytes are. The latter, on the other hand, forms an intercalating network.

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