How is tissue fluid formed and returned to circulatroy system?

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by inkhybrid

by inkhybrid

- at the start of the capillary [arterial end] there is a buildup of hydrostatic pressure

- this pushes fluid out of the capillary via the pores

- the fluid carries the nutrients with it

- the fluid surrounds the cells, this is called tissue fluid

- at the finish of the capillary [venous end] the fluid moves back in by osmosis

- the capillary has a low water potential due to the presence of proteins [too large to move up capillaries]

- any excess tissue fluid is picked up by the lymph system and deposited in the vena cava.