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Water Fluid Pressure Capillary Blood;  Describe Tissue Formed

Tissue fluid is formed by high blood pressure forcing fluid out of capillaries, leaving proteins behind. Water returns to the capillaries by osmosis due to the lower water potential created by these proteins.

Tissue fluid is formed by high blood pressure forcing fluid out of capillaries, leaving proteins behind. Water returns to the capillaries by osmosis due to the lower water potential created by these proteins.

Front Describe how tissue fluid is formed and how it is returned to the circulatory system. ( 6 marks)
Back Formation 
1. High blood / hydrostatic pressure / pressure filtration; 
2. Forces water / fluid out;
3. Large proteins remain in capillary;

Return 
4. Low water potential in capillary / blood; 
5. Due to (plasma) proteins;
6. Water enters capillary / blood; 
7. (By) osmosis;

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