Blood Vessles Flashcards
1
Q
Name the characteristics and structure of the arteries
A
Arteries have:
- Thick outer wall
- Thick layer of muscles and elastic fibre
- Smooth lining within the vessel
- Small lumen
2
Q
Name the characteristics and structure of the vein
A
Veins have:
- Thin outer wall
- Thin layer of muscle and elastic fibre
- Smooth lining
- Loads of valves
3
Q
Name the characteristics and structure of the capillaries
A
Not many characteristics and structure description:
- It’s is a flattened out cell
- Only one cell thick
- Formed of many networks
4
Q
Who do arteries need to have high pressure within them?
A
They will need to carry blood at high pressure all around the body. Blood will also need to travel upwards, so it will need pressure to flow the blood cause of gravity pulling it down.
5
Q
Why do veins have valves?
A
To prevent the back flow of blood and stop blood draining up in one place
6
Q
Who do capillaries have networks?
A
They will be able to exchange molecules between veins and arteries
