News tagged with cardiovascular system
Fish oil may hold key to leukemia cure
A compound produced from fish oil that appears to target leukemia stem cells could lead to a cure for the disease, according to Penn State researchers. The compound -- delta-12-protaglandin J3, or D12-PGJ3 ...
Cancer
Dec 22, 2011 |
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Child diabetes levels higher in China than in US, study finds
A study led by researchers at the University of North Carolina at Chapel Hill found Chinese teenagers have a rate of diabetes nearly four times greater than their counterparts in the United States. The rise in the incidence ...
Diabetes
Jul 05, 2012 |
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Fainting in healthy people may be first sign of heart trouble
(HealthDay)—Fainting isn't fun. For those who have ever suddenly and briefly lost consciousness, it's a disconcerting situation that typically triggers a thorough medical workup. Unfortunately, it's often ...
Cardiology
Dec 12, 2012 |
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A new way of looking at Prader-Willi Syndrome
An Australian study reveals that people with the rare genetic disorder known as Prader-Willi Syndrome may have an impaired autonomic nervous system. This discovery opens up a new way of looking at the insatiable appetite ...
Diseases, Conditions, Syndromes
Nov 15, 2012 |
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Study: Viral reactivation a likely link between stress and heart disease
A new study could provide the link that scientists have been looking for to confirm that reactivation of a latent herpes virus is a cause of some heart problems.
Cardiology
Jan 22, 2013 |
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Long non-coding RNA molecules necessary to regulate differentiation of embryonic stem cells into cardiac cells
When the human genome was sequenced, biologists were surprised to find that very little of the genome—less than 3 percent—corresponds to protein-coding genes. What, they wondered, was all the rest of ...
Medical research
Jan 25, 2013 |
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FDA warns consumers of dangers of the stimulant DMAA
(HealthDay)—The U.S. Food and Drug Administration is attempting to halt distribution of dietary supplements that contain the stimulant dimethylamylamine (DMAA), following reports of illness and death associated ...
Health
Apr 15, 2013 |
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Scientists identify culprit in obesity-associated high blood pressure
Obesity and its related conditions such as type 2 diabetes, cardiovascular disease and stroke are among the most challenging of today's healthcare concerns.
Medical research
Jan 31, 2013 |
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Research shows generic medications are changing the economics of treating chronically ill patients
As the nation seeks to expand health care coverage to more citizens without adding burdensome costs, researchers from Harvard University, Brigham and Women's Hospital and CVS Caremark reported that preventative health care ...
Health
Jul 07, 2011 |
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Essential protein for the formation of new blood vessels identified
New research explains how cells regulate their bonds during the development of new blood vessels. For the first time, the role of the protein Raf-1 in determining the strength of the bond between cells has ...
Medical research
Jan 17, 2012 |
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Love, chocolate good for the heart, cardiologist says
(Medical Xpress) -- Being involved in a healthy, loving relationship is good for the heart, says Vanderbilt Heart and Vascular Institute cardiologist Julie Damp, M.D. “There are a couple of different theories behind why t ...
Health
Feb 14, 2012 |
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Long-term cardiac effects for childhood cancer survivors
(HealthDay) -- Regardless of exposure to cardiotoxic cancer therapies, survivors of childhood cancers display cardiovascular abnormalities and have markers of increased systemic inflammation and atherosclerotic ...
Cancer
Mar 07, 2012 |
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Chocolate a sweet remedy for many ills?
(HealthDay) -- International researchers have uncovered even more healthy properties of flavanols -- the antioxidants found in cocoa beans.
Health
Mar 29, 2012 |
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Immune therapies: The next frontier in battle against atherosclerosis
New strategies injecting cardiovascular disease (CVD) patients with vaccines and monoclonal antibodies to combat atherosclerosis could soon change the treatment landscape of heart disease. Both approaches, Professor Jan Nilsson ...
Cardiology
Mar 30, 2012 |
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Beijing Olympics study reveals biological link between air pollution, cardiovascular disease
Using the 2008 Beijing Olympics as their laboratory, University of Southern California (USC) researchers and colleagues have found biological evidence that even a short-term reduction in air pollution exposure improves one's ...
Health
May 15, 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.
