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Muscle Tissue

Muscle Tissue. Highly cellular, well-vascularized tissues that are responsible for movement Three kinds of muscle tissue; skeletal, cardiac, and smooth. Muscle Tissue: Skeletal. Cells are long, cylindrical, multinucleate cells with obvious striations (stripes)

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Muscle Tissue

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  1. Muscle Tissue • Highly cellular, well-vascularized tissues that are responsible for movement • Three kinds of muscle tissue; skeletal, cardiac, and smooth

  2. Muscle Tissue: Skeletal • Cells are long, cylindrical, multinucleate cells with obvious striations (stripes) • Initiates and controls voluntary movement • Found in skeletal muscles that attach to bones or skin

  3. Muscle Tissue: Skeletal • Long, cylindrical, multinucleate cells with obvious striations • Initiates and controls voluntary movement • Found in skeletal muscles that attach to bones or skin Figure 4.11a

  4. Muscle Tissue: Cardiac • Branching, striated, uninucleate cells • As it contracts it propels blood into the circulation • Found only in the walls of the heart • Involuntary

  5. Muscle Tissue: Cardiac • Branching, striated, uninucleate cells interdigitating at intercalated discs • Propels blood into the circulation • Found in the walls of the heart Figure 4.11b

  6. Muscle Tissue: Smooth • Sheets of spindle-shaped cells with central nuclei that have no striations • Propels substances along internal passageways (i.e., peristalsis) • Found in the walls of hollow organs (such as the stomach, bladder, uterus and blood vessels) • Involuntary

  7. Muscle Tissue: Smooth Figure 4.11c

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