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 ...

Plasma is 90 per cent water and is the vehicle that everything else rides in as blood courses around the 161,000km of blood vessels that ... the recipient’s blood type, so it is valuable in ...

Blood clotting disorders can be inherited or acquired. Some types cause excessive bleeding, while others cause excessive ...

Narrator: Blood gets around our bodies through a system of blood vessels. To picture the blood ... Narrator: Your blood has different cells with different jobs. Some cells do repairs if you ...