Vein
hideIn the circulatory system, veins (from the Latin vena) are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood. They differ from arteries in structure and function; for example, arteries are more muscular than veins and they carry blood away from the heart.
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News tagged with veins
Gene Therapy Hastens Healing Process in Chronic Leg Ulcers
Dec 03, 2009 |
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(PhysOrg.com) -- Chronic wounds, including venous leg ulcers which are caused by poor circulation in the veins of the legs, are difficult and expensive to treat. Researchers at the University of Pennsylvania School of Medicine ...
Cellular Source of Most Common Type of Abnormal Heart Beat Found
Nov 02, 2009 |
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(PhysOrg.com) -- While studying how the heart is formed, scientists at the University of Pennsylvania School of Medicine serendipitously found a novel cellular source of atrial fibrillation (AF), the most ...
Afib triggered by a cell that resembles a pigment-producing skin cell
Oct 12, 2009 |
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The source and mechanisms underlying the abnormal heart beats that initiate atrial fibrillation (Afib), the most common type of abnormal heart beat, have not been well determined. However, a group of researchers at the University ...
Researchers identify better laser for treating facial spider veins
Oct 06, 2009 |
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(PhysOrg.com) -- Researchers from Boston University School of Medicine (BUSM) have concluded that the 940nm wavelength laser is superior for treating facial spider veins (telangiectasias) as compared to the 532nm wavelength ...
Mount Sinai first in nation to ablate atrial fibrillation using new visually-guided balloon catheter
Sep 18, 2009 |
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Physicians at The Mount Sinai Medical Center in New York became the first in the U.S. to ablate atrial fibrillation using a visually-guided laser balloon catheter. The procedure was performed September 15 by Vivek Y. Reddy, ...
Distinctive gene expression in brains of relapsing heroin-addicted rats
Medicine & Health / Neuroscience
Aug 06, 2009 |
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A group of genes whose expression is significantly altered following exposure to drug paraphernalia after an enforced 'cold-turkey' period have been identified. Researchers writing in the open access journal BMC Neuroscience studie ...
Artificial Leaves Generate Power by Pumping Water
Aug 03, 2009 |
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(PhysOrg.com) -- Natural leaves constantly lose water through evaporation, as the water in their veins is pumped up to the top of the tree. This process, called transpiration, could also create a mechanical ...
Breakthrough in 3-D Brain Mapping Enables Removal of Fist-Sized Tumor
Jul 14, 2009 |
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(PhysOrg.com) -- A new technology involving the fusion of four different types of images into a 3-D map of a patient's brain has helped University of Cincinnati (UC) specialists successfully remove a fist-sized ...
Scientists identify gene for deadly inherited lung disease
Jun 04, 2009 |
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A rare, deadly developmental disorder of the lungs called alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) that usually kills the infants born with it within the first month of life results from ...
Knowledge unlocks key to healthier options for dialysis patients
Apr 23, 2009 |
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Kidney disease patients who are educated about dialysis are more likely to undergo a standard but under-utilized dialysis-related procedure than less knowledgeable patients, according to a study appearing in an upcoming issue ...
Is intervention beneficial for brain vessel malformations?
Apr 01, 2009 |
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Individuals diagnosed with a brain arteriovenous malformation (BAVM) -- an abnormal tangle of arteries and veins -- are at increased risk of vessel rupture and bleeding that can cause permanent brain damage. Traditionally, ...
Marine moves fingers after rare hand transplant
Mar 23, 2009 |
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(AP) -- Surgeons have transplanted a hand onto a Marine who was hurt in a training accident, and he has some movement in his fingers, according to the hospital where the operation occurred.
Maggot therapy similar to standard care for leg ulcers
Mar 19, 2009 |
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Larval (maggot) therapy has similar health benefits and costs compared with a standard treatment for leg ulcers, find two studies published on bmj.com today.
Genes may predict vascular malformation
Jan 29, 2009 |
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A pair of studies, led by Medical College of Wisconsin scientists at Children's Research Institute in Milwaukee, may translate into rapid molecular tests to distinguish between hemangiomas and congenital blood or lymph vessel ...
How to... improve circulation
Dec 26, 2008 |
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If blood doesn't move well through your veins and arteries, your tissues and organs aren't getting enough oxygen and nutrients. Here are tips for avoiding heart disease and other major health problems that can result:
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