Pathology 3240A Lecture Notes - Lecture 12: Lympha, Lymphedema, Hypervolemia

• School: Western University
• Department: Pathology
• Course: Pathology 3240A
• Professor: Aaron Haig

Document Summary

Artery, vein, capillary, lymphatic: there are two sides the arterial (oxygenated blood) and venous side, the two sides are connected via pulmonary capillary network, an area for movement of fluid inside the blood vessels to outside the tissue. The main opposing effect is between hydrostatic pressure and plasma oncotic pressure. Hp is the force exerted by a fluid against the capillary wall (pushing force) In vessels hp measures 32 mmhg at arterial end and 12 mmhg at the venous end: hp is much higher on the capillary side than the venous side, mean pressure is 25mmhg. Co2 and waste will go to the venous side and into the heart. The process of substances moving form areas of higher concentration to areas of lower concentration is diffusion. Fluid moves from high concentration 32mmhg on the arteriolar end to the12 mmhg venous side.