Related topics: stem cells
Muscle
hideMuscle (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.
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News tagged with muscle tissue
Traditional stretching doesn't help, studies find
Jul 06, 2009 |
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Arvelle White lifts weights three or four times a week. Before he even looks at a dumbbell, though, he hops on a treadmill and runs for 20 minutes.
Ancient muscle tissue extracted from 18 million year old fossil
Other Sciences / Archaeology & Fossils
Nov 05, 2009 |
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(PhysOrg.com) -- Scientists have extracted organically preserved muscle tissue from an 18 million years old salamander fossil. The discovery by researchers from University College Dublin, the UK and Spain, ...
Stem cell breakthrough: Monitoring the on switch that turns stem cells into muscle
Mar 30, 2009 |
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In a genetic engineering breakthrough that could help everyone from bed-ridden patients to elite athletes, a team of American researchers—including 2007 Nobel Prize winner Mario R. Capecchi—have created a "switch" that allows ...
Can you be born a couch potato?
Jul 16, 2008 |
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The key to good health is to be physically active. The key to being active is… to be born that way? The well-documented importance of exercise in maintaining fitness has created the idea that individuals can manage their ...
Investigating muscle repair, scientists follow their noses
Nov 16, 2009 |
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When muscle cells need repair, they use odor-detecting tools found in the nose to start the process, researchers have discovered.
First treatment for muscular dystrophy in sight: Scientists successfully harness exon-skipping
Medicine & Health / Neuroscience
Mar 16, 2009 |
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Genetic researchers at Children's National Medical Center and the National Center of Neurology and Psychiatry in Tokyo published the results of the first successful application of "multiple exon-skipping" to curb the devastating ...
New procedure alleviates symptoms in people with severe asthma
May 18, 2009 |
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A new drug-free treatment for asthma has been shown to be effective in an international study of patients with severe, uncontrolled asthma. The results showed statistically significant improvements in quality of life and ...
New research provides new insight into age-related muscle decline
Sep 22, 2009 |
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If you think the air outside is polluted, a new research report in the September 2009 issue of the journal Genetics might make you to think twice about the air inside our bodies too. That's because researchers show how ab ...
Misplaced metamorphosis: Researchers identify source of cells that spur aberrant bone growth
Mar 03, 2009 |
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Researchers at the University of Pennsylvania School of Medicine and the University of Connecticut have pinpointed the source of immature cells that spur misplaced bone growth. Unexpectedly, the major repository ...
Major improvements made in engineering heart repair patches from stem cells (w/ Video)
Oct 07, 2009 |
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University of Washington (UW) researchers have succeeded in engineering human tissue patches free of some problems that have stymied stem-cell repair for damaged hearts.
Study: Being active as a preschooler pays off later in childhood
Jul 28, 2009 |
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Being active at age 5 helps kids stay lean as they age even if they don't remain as active later in childhood, a new University of Iowa study shows.
Scientists discover new way to enhance stem cells to stimulate muscle regeneration
Jun 04, 2009 |
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Scientists at the Ottawa Hospital Research Institute (OHRI) and the University of Ottawa have discovered a powerful new way to stimulate muscle regeneration, paving the way for new treatments for debilitating conditions such ...
Comprehensive cardiac CT scan may give clearer picture of significant heart disease
Sep 15, 2009 |
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A team of researchers led by Massachusetts General Hospital (MGH) radiologists has developed a computed-tomography-based protocol that identifies both narrowing of coronary arteries and areas of myocardial ischemia - restricted ...
Vaccine slows progression of skeletal muscle disorder
Medicine & Health / Neuroscience
May 13, 2009 |
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A potential vaccine for Alzheimer's disease also has been shown in mice to slow the weakening of muscles associated with inclusion body myositis, a disorder that affects the elderly.
Team identifies stem cells that repair injured muscles
Mar 05, 2009 |
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A University of Colorado at Boulder research team has identified a type of skeletal muscle stem cell that contributes to the repair of damaged muscles in mice, which could have important implications in the treatment of injured, ...
