Blood Vessels Flashcards
1
Q
Arteries
A
- oxygenated blood
- carry blood away from heart
- small lumen
- thick elastic fibres
- endothelium
- thick outer wall
- thick inner layer of muscle and elastic fibre
- narrow central lumen
2
Q
Capillaries
A
Deoxygenated/oxygenated blood
- small. One cell thick
- exchange substances with cells
- take away waste products
- single cell thick
-They joint into larger vessel veins
- pores in the walls to allow substances to get in and out of the blood
3
Q
Veins
A
Oxygenated blood
- carry blood into the heart
- large lumen
- thin walls
- smooth muscle
- they have valves which prevent blood from flowing backwards making sure it always gets to the heart
- elastic fibres
