News tagged with muscle

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

Muscles out of the spray can

An artificial heart would be an absolute lifesaver for people with cardiac failure. However, to recreate the complex organ in the laboratory, one would first need to work out how to grow multi-layered, living tissues. Researchers ...

Nov 07, 2017
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A pathogenic mechanism in motoneuron disease

Motor neurons are the nerves that send impulses to the muscles to generate movement. Damage of these neurons can cause very diverse diseases, for example spinal muscular atrophy in children or adult amyotrophic lateral sclerosis.

Nov 02, 2017
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Massage could be used to aid recovery of damaged limbs

Massage could increase the regrowth of muscle after muscle loss, according to new research published in The Journal of Physiology. The researchers showed that muscle grew faster after a massage because protein manufacture ...

Nov 01, 2017
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Which stretches to do, avoid

Dear Mayo Clinic: I recently started jogging for exercise. I have been stretching before each run, but I've heard that some stretches increase your risk of injury. Which stretches should I do, and which should I avoid?

Oct 27, 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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