Pages

Wednesday, March 24, 2010

Density of Blood Changes When We Change Our Posture!

Blood is a liquid tissue composed of roughly 55% fluid plasma and 45% cells. The three main types of cells in blood are red blood cells, white blood cells and platelets. 92% of blood plasma is composed of water and the other 8% is composed of proteins, metabolites and ions. The density of blood plasma is approximately 1025 kg/m3 and the density of blood cells circulating in the blood is approximately 1125 kg/m3. Blood plasma and its contents is known as whole blood. The average density of whole blood for a human is about 1060 kg/M3.
Blood density changes with body posture. Venous blood density is higher when a person is standing than when he is sitting. The following charts show the venous blood densities of 6 subjects as they change body positions during a 10 minute period.

http://hypertextbook.com/facts/2004/MichaelShmukler.shtml

Hate to say I told you so but "I Told You So!" :)

1 comment:

derekdadey said...

Please, continue to offer hope to multiple sclerosis sufferers! My son, Eamon, needs to know that there may be a real cure for this terrible disease. Make sure the media gives coverage to places/doctors who may treat patients.Check this out.. http://www.ccsviclinic.ca/