Blood Vessels Flashcards
1
Q
Name 3 types of blood vessels?
A
arteries, capillaries, veins.
2
Q
How does the structure of an artery help it with its function?
A
narrow lumen and thick muscular walls to carry blood under pressure.
3
Q
How does the structure of a capillary help it with its function?
A
have walls one cell thick which increases the rate of diffusion by decreasing diffusion path, have permeable walls for substances to diffuse in and out, carry blood close to every cell to exchange substances with.
4
Q
How does the structure of a vein help it with its function?
A
have a big lumen to help blood flow, have thin walls due to low pressure, have valves to prevent backflow of blood.
