Blood circulates throughout the body, transporting substances essential to life. Here, learn about the components of blood and how it supports human health.

Transporting nutrients: Our body contains millions of cells. As our cells grow, repair themselves, and carry out their functions, they need nutrients. Blood plasma can absorb nutrients from the ...

Blood is made up of plasma and solid components. Of these, the larger part is plasma, comprising about 55%. It appears as a straw-colored fluid and is composed mainly of water, but also carries ...

A red blood cell range is considered typical between 4.6 and 6.2 million cells per microliter (cells/μL) for males and 4.2 to 5.4 million cells/μL for females.. Other tests may be needed to help ...

The volume of blood in our bodies depends on a person’s body weight and their gender, says Hong Kong haematologist Dr Herman Liu Sung-yu. Blood accounts for about 7 per cent of a person’s ...

Plasma makes up about 55 percent of your blood. It carries out several key functions in the body, including transporting waste products. Read on to learn more about plasma, including what it’s ...

Save guides, add subjects and pick up where you left off with your BBC account. There are four components - or parts - of the blood: red blood cells, white blood cells, plasma and platelets. Blood ...

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 ...