News tagged with blood supply
(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 |
(Medical Xpress)—Two babies at risk of brain injury following a lack of oxygen at birth have received xenon gas and cooling therapy while being transferred from one hospital to another in a specially equipped ambulance.
Other Apr 30, 2013 | not rated yet | 0
Cancer cells break down sugars and produce the metabolic acid lactate at a much higher rate than normal cells. This phenomenon provides a telltale sign that cancer is present, via diagnostics such as PET scans, and possibly ...
Cancer Mar 14, 2013 | not rated yet | 0
UPMC surgeons have performed a "breathing lung" transplant using a portable machine that provides a constant supply of blood and nutrients to the donor organs, which doctors say has the potential to keep them healthier and ...
Other Mar 14, 2013 | not rated yet | 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 |
Despite high expectations for a commonly used erectile dysfunction drug to treat patients with diastolic heart failure, no beneficial effects were found in a study presented today at the American College of Cardiology's 62nd ...
Cardiology Mar 12, 2013 | not rated yet | 0
(HealthDay)—The drug Ranexa (ranolazine) may help reduce chest pain in people with type 2 diabetes, a new study finds.
Diabetes Mar 11, 2013 | 5 / 5 (2) | 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 |
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 |
Here's another reason why you should include olive oil in your diet: A new research report published in the Journal of Leukocyte Biology suggests that at least one compound in olive oil significantly reduces intestinal ischem ...
Health Feb 05, 2013 | not rated yet | 0
Researchers from the University of Bonn treated mice with Viagra and made an amazing discovery: The drug converts undesirable white fat cells and could thus potentially melt the unwelcome "spare tire" around the midriff. ...
Medical research Jan 17, 2013 | 5 / 5 (2) | 0
A new study suggests that treatment of mild sleep-disordered breathing with continuous positive airway pressure (CPAP) therapy in pregnant women with preeclampsia improves fetal activity levels, a marker of fetal well-being.
Sleep apnea Jan 02, 2013 | not rated yet | 0
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 |
Urologists at Henry Ford Hospital have developed a new technique that could make minimally invasive robotic partial nephrectomy procedures the norm, rather than the exception for kidney cancer patients. The technique spares ...
Surgery Dec 13, 2012 | 5 / 5 (2) | 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 |
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
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