The Formation & Return of Tissue Fluid

Question 1

What happens during formation of tissue fluid?

Answer 1

hydrostatic pressure is higher in the blood than in the tissue fluid

water and small molecules are forced out e.g. oxygen, sodium, glucose

large molecules stay inside the capillary e.g. proteins

Question 2

What happens during the return of tissue fluid?

Answer 2

water potential in blood becomes lower than water potential in the tissue fluid

because proteins remain in blood
water moves into the capillary by osmosis

hydrostatic pressure drops in capillary and water moves in down pressure gradient

tissue fluid drains into the lymph

Question 3

What are the parts of the tissue fluid?

Answer 3

capillary bed then you got all the glucose sodium proteins scattered

then in the tissue fluid u got the respiring cells and then beneath is the lymph

Question 4

When does pressure drop?

Answer 4

as you move along the capillary bed because water moves out