OUR BLOOD SYSTEM
The Functions of Blood
- transports
- oxygen and carbon dioxide
- food molecules (glucose, lipids, amino acids)
- ions (e.g., Sodium, Calcium, bicarbonate)
- wastes (e.g., urea, carbon dioxide)
- hormones
- heat
through the body
- defence of the body against infections and other foreign materials.
Our Blood System consists of three parts:
- the vessels (pipes) which transport the blood around the body
- the actual blood
- the heart, which pumps the blood through the vessels
Links
