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2. Skeletal muscle - Wikipedia

   en.wikipedia.org/wiki/Skeletal_muscle

   Skeletal muscle cells are the individual contractile cells within a muscle, and are often termed as muscle fibers. [3] A single muscle such as the biceps in a young adult male contains around 253,000 muscle fibers. [22] Skeletal muscle fibers are multinucleated with the nuclei often referred to as myonuclei.

3. Muscle cell - Wikipedia

   en.wikipedia.org/wiki/Muscle_cell

   Diagram of skeletal muscle fiber structure. Skeletal muscle cells are the individual contractile cells within a muscle and are more usually known as muscle fibers because of their longer threadlike appearance. [10] Broadly there are two types of muscle fiber performing in muscle contraction, either as slow twitch or fast twitch .

4. Striated muscle tissue - Wikipedia

   en.wikipedia.org/wiki/Striated_muscle_tissue

   Skeletal muscle is wrapped in epimysium, allowing structural integrity of the muscle despite contractions. The perimysium organizes the muscle fibers, which are encased in collagen and endomysium, into fascicles. Each muscle fiber contains sarcolemma, sarcoplasm, and sarcoplasmic reticulum. The functional unit of a muscle fiber is called a ...

5. Triad (anatomy) - Wikipedia

   en.wikipedia.org/wiki/Triad_(anatomy)

   In the histology of skeletal muscle, a triad is the structure formed by a T tubule with a sarcoplasmic reticulum (SR) known as the terminal cisterna on either side. [1] Each skeletal muscle fiber has many thousands of triads, visible in muscle fibers that have been sectioned longitudinally. (This property holds because T tubules run ...

6. List of skeletal muscles of the human body - Wikipedia

   en.wikipedia.org/wiki/List_of_skeletal_muscles...

   This is a table of skeletal muscles of the human anatomy, with muscle counts and other information. Skeletal muscle maps. ... (lower fibers depress scapula, ...

7. T-tubule - Wikipedia

   en.wikipedia.org/wiki/T-tubule

   T-tubules (transverse tubules) are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells.With membranes that contain large concentrations of ion channels, transporters, and pumps, T-tubules permit rapid transmission of the action potential into the cell, and also play an important role in regulating cellular calcium concentration.

8. Muscle - Wikipedia

   en.wikipedia.org/wiki/Muscle

   Striated skeletal muscle cells in microscopic view. Skeletal muscle is broadly classified into two fiber types: type I (slow-twitch) and type II (fast-twitch). Type I, slow-twitch, slow oxidative, or red muscle is dense with capillaries and is rich in mitochondria and myoglobin, giving the muscle tissue its characteristic red color.

9. Myofibril - Wikipedia

   en.wikipedia.org/wiki/Myofibril

   A myofibril (also known as a muscle fibril or sarcostyle) [1] is a basic rod-like organelle of a muscle cell. [2] Skeletal muscles are composed of long, tubular cells known as muscle fibers, and these cells contain many chains of myofibrils. [3] Each myofibril has a diameter of 1–2 micrometres. [3]