News tagged with blood supply
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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Xenon gas successfully delivered to babies in ambulance
(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 |
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New cancer diagnostic technique debuts
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 |
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First 'breathing lung' transplant on East Coast using OCS lung
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 |
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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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Erectile dysfunction drug fails for diastolic heart failure patients
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 |
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Drug may ease angina in people with type 2 diabetes
(HealthDay)—The drug Ranexa (ranolazine) may help reduce chest pain in people with type 2 diabetes, a new study finds.
Diabetes
Mar 11, 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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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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Olive oil component alleviates intestinal ischemia and reperfusion
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 |
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Viagra converts fat cells
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 |
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Treating sleep-disordered breathing in pregnancy may improve fetal health
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 |
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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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New technique for minimally invasive robotic kidney cancer surgery
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 |
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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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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.
