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consists primarily of cells that are specialized for contraction: 3 different types: skeletal, cardiac and smooth
skeletal muscle tissue
contains very large ylindrical muscle fibers interconncted by collagen and elastic fibers; incapable of dividing; multinucleate; aka. striated voluntary muscle
found only in skeletal muscle tissue; aka. a mesenchymal cell that persists in adult skeletal muscle tissue lives in muscle tissue; as a result, skeletal muscle tissue can partially repair itself after injury
skeletal muscle fibers
aka. muscle fibers, incapable of dividing contain actin and myosin filaments arranged in parallel
cardiac muscle tissue
found only in the heart; composed of unicellular branched short cells connected to each other by intercalated discs; also cannot regenerate but lacks myosatellite cells; aka. striated involuntary muscle
smooth muscle tissue
is composed of short, tapered cells containing a single nucleus; found in walls of blood vessels, hollow organs and in layers around various tracts; aka. nonstriated involuntary muscle; can divide and regenerate
is specialized to conduct electrical impulses from one area of body to another; two cell types: neurons and neuroglia
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