Topics :: Blood Disorders
From: billwynne | Added: 07/22/2008 | Views: 8
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Added: July 22, 2008 | Posted by: billwynne | Time 58:43 | Views: 22
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Added: June 16, 2008 | Posted by: dizzo95 | Time 01:03 | Views: 43
A description of how blood circulates throughout the body.
Added: June 4, 2008 | Posted by: dizzo95 | Time 01:03 | Views: 59
Blood clotting takes place in a sequential process to prevent excessive blood loss from a wound. Normally, circulating blood contains red cells, platelets, plasma-clotting factors and fibrinogen, a soluble protein. Tissue-clotting factors lie trapped within cells surrounding each blood vessel. When an injury occurs, blood escapes from the broken vessel. Platelets aggregate at the site and partially plug the break. Tissue-clotting factors are released.
Added: June 4, 2008 | Posted by: dizzo95 | Time 01:05 | Views: 52
There are many different blood groups of which the two most important are the ABO and the Rhesus or Rh groupings. More than 85 percent of the world's population possess the Rh antigen in their blood---and are considered Rh positive. In all other individuals the antigen is lacking and they are classified as Rh negative. Should the antigen enter the bloodstream of an Rh negative person, serious consequences follow. If a Rh negative woman is impregnated by a Rh positive man, the fetus may be Rh positive, too.
Added: June 4, 2008 | Posted by: dizzo95 | Time 00:58 | Views: 52
Blood transports many different materials around the body. Red blood cells carry oxygen from the lungs to the tissues and carbon dioxide from the tissue to the lungs. Blood plasma transports antibodies, which protect the body from infection, carries food substances absorbed from the intestines and takes waste products to the kidneys for excretion. It also transports hormones, secreted by endocrine glands, to their sites of action. Clotting factors circulating in the plasma prevent blood loss whenever blood vessels are damaged or broken. Blood also regulates the water content of tissue cells.
- From: billwynne
- Type: Patients & People
- Joined: July 2008
- Videos: 9
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Added: July 22, 2008 | Time 58:43 | Views: 22
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