News tagged with blood supply
MRI-based measurement helps predict vascular disease in the brain
Aortic arch pulse wave velocity, a measure of arterial stiffness, is a strong independent predictor of disease of the vessels that supply blood to the brain, according to a new study published in the June issue the journal ...
Medical research
May 23, 2013 |
not rated yet |
0
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 |
5 / 5 (5) |
2
|
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 |
5 / 5 (4) |
0
|
'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 |
5 / 5 (18) |
2
|
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 |
5 / 5 (5) |
1
|
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 |
not rated yet |
0
|
'Back talk' from blood cells to their progenitors is critical to balancing blood supply
(PhysOrg.com) -- When it comes to the body's blood supply, maintaining the right balance is crucial. UCLA stem cell scientists have now discovered that in the common fruit fly, this balancing act requires a complex "conversation" ...
Medical research
Jan 05, 2012 |
not rated yet |
0
|
Scientists discover new molecular pathway involved in wound-healing and temperature sensation
Scientists from The Scripps Research Institute have identified a surprising new molecular pathway in skin cells that is involved in wound-healing and sensory communication.
Medical research
Jun 28, 2011 |
5 / 5 (1) |
0
|
Aspirin as good as Plavix for poor leg circulation: study
(HealthDay) -- Aspirin works as well as Plavix in patients with blocked leg arteries, a new European study finds.
Cardiology
Feb 22, 2012 |
5 / 5 (1) |
1
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 |
4 / 5 (1) |
0
|
Stem cell treatments improve heart function after heart attack
Stem cell therapy moderately improves heart function after a heart attack, according to a systematic review published in The Cochrane Library. But the researchers behind the review say larger clinical trials are needed to ...
Medical research
Feb 14, 2012 |
5 / 5 (1) |
0
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 |
5 / 5 (4) |
1
|
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 |
not rated yet |
0
Hepatitis C deaths up, baby boomers most at risk
(AP) -- Deaths from liver-destroying hepatitis C are on the rise, and new data shows baby boomers especially should take heed - they are most at risk.
Diseases, Conditions, Syndromes
Feb 20, 2012 |
not rated yet |
3
Tomato nutrient may intercept cancer growth
(Medical Xpress) -- A nutrient in cooked tomatoes has been shown in laboratory studies to slow the growth of or even kill prostate cancer cells.
Cancer
Feb 02, 2012 |
4 / 5 (3) |
1
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.
