How does blood work?. Full view
How Does blood work? And what problems occur? Blood is a combination of plasma and cells that circulate through the entire body. It is a specialized bodily fluid that supplies essential substances around the body, such as sugars, oxygen, and hormones. It also removes waste from the cells in the body. Hematologists work to identify and prevent blood and bone marrow diseases, as well as studying and treating the immune system, blood clotting, and the veins and arteries. In the United States (U.S.), blood diseases accounted for between 9,000 and 10,000 annual deaths from 1999 to 2010. This constitutes less than one percent of total deaths from disease Fast facts on blood Blood transports oxygen and nutrients around the body and removes cellular waste, among a range of other vital functions. Plasma makes up 55 percent of blood content. The other 45 percent consists mainly of red blood cells and platelets. Blood groups are...