capillary structure-lqc 2

Question 1

Capillary wall is very thin - one cell thick (flattened cells)

Answer 1

reduced diffusion distance speeds up exchange of substances between the blood and tissue fluid cells

Question 2

walls have pores

Answer 2

to allow the passage of molecules through the wall, aiding formation of tissue fluid

Question 3

very narrow lumen

Answer 3

Decreases the rate of blood flow to allow more time for exchange of oxygen/glucose between blood and cells