You naturally release bicarbonate wastes as you exhale. Your bone marrow is responsible for producing red blood cells. In all, each red blood cell lives for an average of 120 days. During this ...

All blood vessels are specifically structured to perform their function. For example, a capillary is microscopically thin to allow gases to exchange, the arteries are tough and flexible to cope ...

All blood vessels are specifically structured to perform their function. For example, a capillary is microscopically thin to allow gases to exchange, the arteries are tough and flexible to cope ...