Structure of Blood Vessels Flashcards
1
Q
what are arteries
A
- blood vessels that take blood away from the heart
- usually carrying oxygenated blood
- thick, muscular walls
- high pressure
(e.g. pulmonary artery, aorta)
2
Q
what are veins
A
- blood vessels that takes blood towards the heart
- usually carrying deoxygenated blood (except pulmonary vein)
- thin walls
- lower pressure
3
Q
what are capillaries
A
- capillary bed (network) is embedded in the tissue of muscles/lungs
- where gaseous exchange occurs
- very thin walls
- high pressure
4
Q
what are arterioles
A
small arteries
5
Q
what are venules
A
small veins
