Formation and Return of Tissue Fluid Flashcards
1
Q
How is tissue fluid formed?
A
- Hydrostatic pressure is higher in the blood than in the tissue fluid
- Water and small molecules are forced out
- Large molecules stay inside the capillary
2
Q
How is tissue fluid returned?
A
- Water potential in blood becomes lower than water potential in tissue fluid because proteins remain in the blood
- Water moves into capillary by osmosis
- Hydrostatic pressure drops in capillary so water moves in down pressure gradient
- Tissue fluid drains into the lymph
3
Q
What happens to pressure along the capillary bed?
A
Drops as you move along the capillary bed because water moves out
