Capillary Exchange

Why does water exits at the arterial end of a capillary?

Why are the walls of capillaries very thin?

• to facilitate diffusion of gasses

• to facilitate diffusion of nutrient

• to facilitate diffusion of blood

• to facilitate diffusion of wastes

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-3

What are the two forces that primarily control the movement of fluid through the capillary wall?

Why do plasma proteins remain in the capillaries?

How does osmotic pressure is created in a capillary?

midway along the capillary, _______ diffuse out of the capillary, and _______ diffuse into the capillary

• oxygen and nutrients; red blood cells and plasma proteins

• oxygen and nutrients; carbon dioxide and wastes

• carbon dioxide and wastes; oxygen and nutrients

• red blood cells and plasma proteins; carbon dioxide and wastes;

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-3

Excess interstitial fluid is collected by lymphatic capillaries called ______

Blood that enters a capillary at the arterial end is rich in

• carbon dioxide

• oxygen

• nutrient

• water

Tags

NGSS.HS-LS1-7

Substances leaving capillaries contribute to ________

Tags

NGSS.HS-LS2-3

midway along the capillary, there is no net movement of water and solutes diffuse according to their ________