Structure and function of blood vessels
Blood vessels are the bodies blood transportation network. There are different types of blood vessels and they all differ in size, structure and function.
- Thick muscular walls.
- Found deep beneath the skin surface.
- Subdivide into smaller arteries called arterioles.
- Withstand high blood pressure
- Generally carry oxygenated blood (except for the pulmonary artery).
- Take blood away from the heart.
- Have thin vascular walls
- Subjected to low blood pressure.
- Have valves.
- Found close to the skin surface.
- Generally carry deoxygenated blood (except for the pulmonary vein).
- Deliver blood to the heart.
- The smallest of the blood vessels.
- Have very thin walls (one cell thick).
- Allow diffusion of gases, known as gaseous exchange.
Can you now remember which is which?