News tagged with muscle
Researchers cure epilepsy in mice using brain cells
UCSF scientists controlled seizures in epileptic mice with a one-time transplantation of medial ganglionic eminence (MGE) cells, which inhibit signaling in overactive nerve circuits, into the hippocampus, a brain region associated ...
Neuroscience
May 05, 2013 |
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'Junk DNA' drives embryonic development
An embryo is an amazing thing. From just one initial cell, an entire living, breathing body emerges, full of working cells and organs. It comes as no surprise that embryonic development is a very carefully ...
Genetics
Dec 03, 2012 |
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Insight into the dazzling impact of insulin in cells
Australian scientists have charted the path of insulin action in cells in precise detail like never before. This provides a comprehensive blueprint for understanding what goes wrong in diabetes.
Medical research
May 21, 2013 |
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Scientists find regulator linking exercise to bigger, stronger muscles
Scientists at Dana-Farber Cancer Institute have isolated a previously unknown protein in muscles that spurs their growth and increased power following resistance exercise. They suggest that artificially raising the protein's ...
Medical research
Dec 06, 2012 |
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New injectable hydrogel encourages regeneration, improves functionality after heart attack
University of California, San Diego bioengineers have demonstrated in a study in pigs that a new injectable hydrogel can repair damage from heart attacks, help the heart grow new tissue and blood vessels, ...
Medical research
Feb 20, 2013 |
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Scientists make insulin-producing cells self-replicate
(Medical Xpress)—Scientists have discovered a hormone that causes the body's insulin-producing factories, beta cells, to churn out more of themselves. Having enough insulin is critical to regulating the amount of sugar ...
Medical research
Apr 29, 2013 |
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Fighting fat with fat: Stem cell discovery identifies potential obesity treatment
Ottawa scientists have discovered a trigger that turns muscle stem cells into brown fat, a form of good fat that could play a critical role in the fight against obesity. The findings from Dr. Michael Rudnicki's ...
Medical research
Feb 05, 2013 |
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Missing link in Parkinson's disease found
Researchers at Washington University School of Medicine in St. Louis have described a missing link in understanding how damage to the body's cellular power plants leads to Parkinson's disease and, perhaps ...
Medical research
Apr 25, 2013 |
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Discovery of nitric oxide delivery mechanism may point to new avenue for treating high blood pressure
(Medical Xpress)—Researchers at the University of Virginia School of Medicine have shed new light on blood pressure regulation with the discovery of an unexpected mechanism by which hemoglobin controls the delivery of nitric ...
Medical research
Nov 14, 2012 |
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One cell does it all: Sensory input to motor output in one worm neuron
Caenorhabditis elegans, with just 302 neurons, has long been considered an ideal model system for the study of the nervous system. New research, however, is suggesting that the worms' "simple" nervous system may be much m ...
Neuroscience
Nov 21, 2012 |
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Surprise origin for coronary arteries could speed advances in regenerative medicine
During embryonic development, the all-important coronary arteries arise from cells previously considered incapable of producing them, according to scientists at Albert Einstein College of Medicine of Yeshiva University. The ...
Cardiology
Nov 21, 2012 |
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Ordinary heart cells become 'biological pacemakers' with injection of a single gene
Cedars-Sinai Heart Institute researchers have reprogrammed ordinary heart cells to become exact replicas of highly specialized pacemaker cells by injecting a single gene (Tbx18)–a major step forward in the decade-long search ...
Medical research
Dec 16, 2012 |
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Gene therapy reprograms scar tissue in damaged hearts into healthy heart muscle
A cocktail of three specific genes can reprogram cells in the scars caused by heart attacks into functioning muscle cells, and the addition of a gene that stimulates the growth of blood vessels enhances that effect, said ...
Cardiology
Jan 04, 2013 |
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Blood vessels 'sniff' gut microbes to regulate blood pressure
Researchers at The Johns Hopkins University and Yale University have discovered that a specialized receptor, normally found in the nose, is also in blood vessels throughout the body, sensing small molecules ...
Medical research
Feb 26, 2013 |
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Study shows that blocking an inflammation pathway prevents cardiac fibrosis
(Medical Xpress)—New research from UC Davis published in the Proceedings of the National Academy of Sciences shows that blocking an enzyme that promotes inflammation can prevent the tissue damage following a heart attack ...
Medical research
Mar 22, 2013 |
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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.
For more information about Muscle, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
