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 ...

It is returned to the heart in the veins. The capillaries connect the two types of blood vessel, and molecules are exchanged between the blood and the cells across their walls.

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 three main types are leukaemia, which is caused ...

The bags then go into a school-bus-sized incubator to soak in a nutrient bath for two ... type of polyester called Dacron are sometimes used when a patient doesn’t have an available blood vessel.

Blood vessels are equipped with processes that regulate the optimum blood flow. This delivers oxygen and nutrients to the brain and clears away toxic waste products. Alzheimer’s disease and vascular ...