PHGY 209 Lecture Notes - Lecture 7: Liver Disease, Kidney Disease, Antibody
3 Oct 2016
School
Department
Course
Professor
Document Summary
There are two major forms of fluid transport across the capillary wall: the c. o. p of plasma determines how much water will flow into or out of capillaries, bulk flow. Flow of molecules subjected to a pressure difference. Magnitude of bulk flow is proportional to hydrostatic pressure difference. Acts like a sieve, withholding some particles. Capillary walls porous memebrane and that"s what filters it are permeable and allow the passage of ions. It is a: not allow the passage of proteins. Pressure on the side of proteins is higher. Tends to push out the fluid from inside the capillaries: osmotic flow. Tends to pull in or retain fluid inside the capillaries. When the heart pumps, it pumps blood 120mmhg and when it relaxes its 80 mmhg. Some parts of the circulatory system do not exchange molecules through the walls: artery, arteriole, venus, vein. Site of exchange between plasma and isf.
