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TABLE 2.1 Three Types of Muscle Tissue
A. Smooth muscleB. Cardiac muscleC. Skeletal muscleAppearanceClosely aligned, long, spindle-shaped cells with central nucleiNonstriatedShort, branching, generally uninucleate cells that interdigitate at intercalated discsStriatedVery long, cylindrical, multinucleate cellsStriatedLocationWalls of hollow organs and tubesWalls of heartPrimarily attaches to bones and occasionally to skinFunctionPropels substances or objects through organs or tubesPropels blood through blood vesselsMovement, posture, joint stability, shock absorption, facial expressionsControlInvoluntaryAutomatic contractionsInvoluntaryAutomatic contractionsVoluntaryRequires nerve stimulation to contract