4. Which factors favor the exchange between blood and tissues?

The primary force driving fluid transport between the capillaries and tissues is hydrostatic pressure.which can be defined as the pressure of any fluid enclosed in a space. Blood hydrostatic pressure is the force exerted by the blood confined within blood vessels or heart chambers.The rate of exchange, In either direction, Is determined by physical factors : hydrostatic pressureb , oncotic pressure , And the physical nature of the barrier separating the blood and the interstitium of the tissue (Ex:- The permeability of the vessel wall).Hope this helps !!