Muscle

Loading results

In the News

powered by Ovast

On Twitter

Loading tweets for 'Muscle'

Videos

  • Today's Health: Mind Your Body

    Today's Health: Mind Your Body

  • Dentistry Of The Shoals Offers Free Treatments

    Dentistry Of The Shoals Offers Free Treatments

  • South Park Mall hosts the MDA Muscle Walk

    South Park Mall hosts the MDA Muscle Walk

  • Group presents check to Crime Alert

    Group presents check to Crime Alert

  • Massage Reduces Inflammation: Study

    Massage Reduces Inflammation: Study

  • Muscle Shoals Signing Day

    Muscle Shoals Signing Day

  • YMCA Trainer

    YMCA Trainer

  • WTAE's Janelle Hall Gets Ready For Pittsburgh Marathon

    WTAE's Janelle Hall Gets Ready For Pittsburgh Marathon

Additional Info

via Wikipedia
Muscle is a contractile tissue of animals and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They are classified as skeletal, cardiac, or smooth muscles. Their function is to produce force and cause motion. Muscles can cause either locomotion of the organism itself or movement of internal organs. Cardiac and smooth muscle contraction occurs without conscious thought and is necessary for survival. Examples are the contraction of the heart and peristalsis which pushes food through the digestive system. Voluntary contraction of the skeletal muscles is used to move the body and can be finely controlled. Examples are movements of the eye, or gross movements like the quadriceps muscle of the thigh. There are two broad types of voluntary muscle fibers: slow twitch and fast twitch. Slow twitch fibers contract for long periods of time but with little force while fast twitch fibers contract quickly and powerfully but fatigue very rapidly.
Loading recipes for 'Muscle'

Weather -

Loading weather for 'Muscle'
Loading More Stories