MEDICAL PHYSIOLOGY

Detailed explanation-1: -Oncotic pressure, or colloid osmotic-pressure, is a form of osmotic pressure induced by the proteins, notably albumin, in a blood vessel’s plasma (blood/liquid) that causes a pull on fluid back into the capillary.

Detailed explanation-2: -Even more specifically, the pressure exerted by blood against the wall of a capillary is called capillary hydrostatic pressure (CHP), and is the same as capillary blood pressure. CHP is the force that drives fluid out of capillaries and into the tissues.

Detailed explanation-3: -Hydrostatic pressure (Pcap) is normally the major force of filtration across the capillary wall.

Detailed explanation-4: -Osmotic pressure is the pressure that tends to “pull” the fluid back into the capillaries, working opposite of the hydrostatic pressure. Osmotic pressure is also sometimes called “oncotic pressure”.