Striated muscle tissue
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Striated muscle tissue is a muscle tissue that features repeating functional units called sarcomeres. Under the microscope, sarcomeres are visible along muscle fibers, giving a striated appearance to
Micrograph of HPS stained skeletal striated muscle (fibularis longus).
Skeletal muscle
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Skeletal muscle is one of the three types of vertebrate muscle tissue, the others being cardiac muscle and smooth muscle. They are part of the musculoskeletal system, and typically are attached by ten
Striated muscle tissue
…Under the microscope, sarcomeres are visible along muscle fibers, giving a striated appearance to the tissue. The two types of striated muscle are skeletal muscle and cardiac muscle. Striated muscle tissue contains T-tubules which enables the release of calcium ions from the sarcoplasmic reticulum…
Skeletal muscle includes muscle fibers, satellite cells endothelial cells, fibro-adipogenic progenitors, and associated pericytes.
ATPase staining of a muscle cross section. Type II fibers are dark, due to the alkaline pH of the preparation. In this example, the size of the type II fibers is considerably less than the type I fibers due to denervation atrophy.
Diagram of sarcoplasmic reticulum with terminal cisternae and T-tubules
When a sarcomere contracts, the Z lines move closer together, and the I band becomes smaller. The A band stays the same width. At full contraction, the thin and thick filaments overlap.