News tagged with blood supply
Ability of brain to protect itself from damage revealed
The origin of an innate ability the brain has to protect itself from damage that occurs in stroke has been explained for the first time.
Medical research
Feb 24, 2013 |
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More doubt on virus, chronic fatigue connection
A study supported by the U.S. Department of Health and Human Services could not validate or confirm previous research findings that suggested the presence of one of several viruses in blood samples of people living with chronic ...
Diseases, Conditions, Syndromes
Sep 22, 2011 |
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Stents disrupt blood flow
(Medical Xpress)—A researcher at ETH Zurich is designing a realistic artery model with an implanted stent and is using a computer to simulate the blood flow through the stent. In doing so he is uncovering ...
Cardiology
May 06, 2013 |
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Garbled text messages may be the only symptoms of stroke
Difficulty or inability to write a coherent text message, even in patients who have no problem speaking, may become a "vital" tool in diagnosing a type of crippling stroke, according to new research at Henry Ford Hospital.
Neuroscience
Mar 14, 2013 |
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Mini-organ would mimic pancreas to treat type 1 diabetes
(HealthDay)— A new bioengineered, miniature organ dubbed the BioHub might one day offer people with type 1 diabetes freedom from their disease.
Medical research
Mar 05, 2013 |
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Paired CT scans catch chemo-killing of liver tumors in real time
Using two successive pairs of specialized CT scans, a team of Johns Hopkins and Dutch radiologists has produced real-time images of liver tumors dying from direct injection of anticancer drugs into the tumors and their surrounding ...
Cancer
Jan 01, 2013 |
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Enzyme explains angina in diabetics
(Medical Xpress)—In a new study published in the scientific journal Circulation, scientists at Karolinska Institutet and Karolinska University Hospital show that an enzyme called arginase might have a key ...
Cardiology
Nov 27, 2012 |
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Gene helps predict which ovarian cancer sufferers will benefit most from chemotherapy
(Medical Xpress)—Researchers from the University of Dundee have discovered that measuring how active a gene is could predict which women with ovarian cancer will benefit from platinum-based chemotherapy ...
Cancer
Sep 19, 2012 |
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Lack of oxygen in cancer cells leads to growth and metastasis
(Medical Xpress)—It seems as if a tumor deprived of oxygen would shrink. However, numerous studies have shown that tumor hypoxia, in which portions of the tumor have significantly low oxygen concentrations, ...
Cancer
Sep 13, 2012 |
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Tumor suppressor genes vital to regulating blood precursor cells in fruit flies
UCLA stem cell scientists have shown that two common tumor suppressor genes, TSC and PTEN, are vital to regulating the stem cell-like precursor cells that create the blood supply in Drosophila, the common fruit fly.
Medical research
Sep 05, 2012 |
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Protein that helps tumor blood vessels mature could make cancer drugs more effective
Since anti-cancer drugs are carried to tumors by the bloodstream, abnormal blood vessel development can hamper delivery. In a paper published Aug. 14 in Cancer Cell, researchers at Sanford-Burnham Medica ...
Cancer
Aug 13, 2012 |
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Study uses stem cells to boost red blood cell production
(HealthDay) -- Using human stem cells, scientists have developed methods to boost the production of red blood cells, according to a new study.
Medical research
Aug 07, 2012 |
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Better management of traumatic brain injury
New treatments to lessen the severity of the more than 21,000 Traumatic Brain Injury (TBI) cases that occur in Australia each year are on the horizon.
Neuroscience
Jul 19, 2012 |
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'Molecular grenade': Drug from Mediterranean weed kills tumor cells in mice
Scientists at the Johns Hopkins Kimmel Cancer Center, working with Danish researchers, have developed a novel anticancer drug designed to travel -- undetected by normal cells -- through the bloodstream until activated by ...
Cancer
Jul 09, 2012 |
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Nonsurgical method to measure brain pressure shows promise
(HealthDay) -- A new nonsurgical method for monitoring brain pressure might help improve treatment of head injury patients, according to a new study.
Medical research
Apr 11, 2012 |
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Circulatory system
The circulatory system is an organ system that passes nutrients (such as amino acids and electrolytes), gases, hormones, blood cells, nitrogen waste products, etc. to and from cells in the body to help fight diseases and help stabilize body temperature and pH to maintain homeostasis. This system may be seen strictly as a blood distribution network, but some consider the circulatory system as composed of the cardiovascular system, which distributes blood, and the lymphatic system, which distributes lymph. While humans, as well as other vertebrates, have a closed cardiovascular system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open cardiovascular system. The most primitive animal phyla lack circulatory system. The lymphatic system, on the other hand, is an open system.
The main components of the human circulatory system are the heart, the blood, and the blood vessels. The circulatory system includes: the pulmonary circulation, a "loop" through the lungs where blood is oxygenated; and the systemic circulation, a "loop" through the rest of the body to provide oxygenated blood. An average adult contains five to six quarts (roughly 4.7 to 5.7 liters) of blood, which consists of plasma, red blood cells, white blood cells, and platelets. Also, the digestive system works with the circulatory system to provide the nutrients the system needs to keep the heart pumping.
Two types of fluids move through the circulatory system: blood and lymph. The blood, heart, and blood vessels form the cardiovascular system. The lymph, lymph nodes, and lymph vessels form the lymphatic system. The cardiovascular system and the lymphatic system collectively make up the circulatory system.
For more information about Circulatory system, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
