Many people like to understand how exactly their body works. Understanding the blood will help you a lot when your doctor explains results from blood tests.
The blood is a very important part of our body, also being called "The river of life". The red cells are the most common part of blood cells and for vertebrates, red blood cells are the organism's principal means to deliver oxygen around the body. Watch this instructional video to learn even more fantastic things about red blood cells.
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