News tagged with blood supply
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 | 5 / 5 (5) | 2 |
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 | not rated yet | 0 |
(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 | 5 / 5 (4) | 0 |
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 | 4 / 5 (1) | 0 |
(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 | 5 / 5 (4) | 1 |
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 | not rated yet | 0 |
(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 | 5 / 5 (2) | 0 |
(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 | not rated yet | 0
(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 | 5 / 5 (5) | 1 |
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 | not rated yet | 0 |
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 | 5 / 5 (2) | 0 |
(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 | not rated yet | 0 |
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 | 5 / 5 (2) | 0 |
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 | 5 / 5 (18) | 2 |
(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 | 5 / 5 (2) | 0 |
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
This text uses material from Wikipedia and is available under the GNU Free Documentation License.