Circulatory System - Blood Vessels

Circulatory System - Blood Vessels

There are three types of blood vessel:

• ARTERIES - these carry the blood away from the heart
• CAPPILLARIES - these are involved in the exchanging if materials at the tissues (really tiny)
• VIENS - these carry the blood to the heart

The Arteries:

They leave the heart and carry blood away from it. The heart pumps blood at high pressure and enters the artieries so they have:

• Strong walls - elastic fibres allow them to move to stretch and then recoil at every blood spurt
• Contain a thick layer of muscle…