How does capillary permeability affect movement of fluids?
Capillary integrity provides the basis for the movement of fluids and electrolytes across the cell membrane. If there is increased capillary permeability then substances can freely cross the cell membrane leading to shifting of body fluids and electrolytes. Conditions that increase capillary permeability include burns, shock or trauma states where cellular integrity is altered or damaged. If there is decreased capillary permeability then there is no effective net movement of substances and homeostatic mechanisms are maintained.
