News tagged with muscle

Related topics: genes · protein · mice · cells · stem cells

3-D-printed patch can help mend a 'broken' heart

A team of biomedical engineering researchers, led by the University of Minnesota, has created a revolutionary 3D-bioprinted patch that can help heal scarred heart tissue after a heart attack. The discovery is a major step ...

Apr 14, 2017
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Are your muscles genetically prepared to run a marathon?

For a few years, running has been fashionable. But there is a great difference between the physical demands of running a few kilometres and doing a marathon. Now Spanish researchers have concluded that genetics plays an essential ...

Apr 06, 2017
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Muscle

Muscle (from Latin musculus, diminutive of mus "mouse") is the contractile tissue of the body 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.

This text uses material from Wikipedia, licensed under CC BY-SA

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