What is Blood Cell?
Blood Cells – RBC, WBC
Blood (consisting of cells and plasma) flows through our whole body in the circulatory system. This system is like a big network of roads for our blood. It takes oxygen and nutrients to every part of the body. Blood cells play a big part in this system, especially for functions like carrying oxygen.
Blood cells are produced in the bone marrow. They are released into the bloodstream when our body needs them. Life span of each blood cell are different. Red blood cells (carry oxygen) can live for about 120 days. Platelets (help stop bleeding) live for about 6 to 10 days. White blood cells (fight germs) can live from a few hours to several days.
Types of Blood cells
Blood cells are tiny but important parts of human blood. Our blood is made of these cells and a liquid called plasma. Blood cells have different roles, from carrying oxygen to body to fighting germs, removing waste products, or helping heal cuts.
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