Biology

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TYPES OF MUSCLES Reporter: Jinky P. Refurzado BSA 2-10

description

-skeletal muscles

Transcript of Biology

Slide 1

TYPES OF MUSCLESReporter: Jinky P. RefurzadoBSA 2-10Skeletal Muscles Muscles that produce the movements of the skeletons, they are sometimes called voluntary muscles.Skeletal Muscles Attachments:Origin attachments that moves the leastInsertion attachments that moves the most

cross section of a skeleton muscle and its attachment to the bone 2 Types:alpha fibers- derived from large cells in the anterior gray horn gamma fibers- derived from smaller cells in the spinal cord Motor fibersNerve FibersSensory fibers myelinated and arise from specialized sensory endings lying within the muscle or tendons called muscle spindles or tendon spindles.Sympathetic fibers nonmyelinated and pass to the smooth muscle in the walls of the blood vessels supplying the muscle.