BIOL 221 Lecture Notes - Lecture 4: Oncotic Pressure, Horsepower, Colloid

• School: Towson University
• Department: Biology
• Course: BIOL 221
• Professor: Ellen Lathrop-Davis

Document Summary

30 mm hg 3 mm hg = 27 mm hg. 10 mm hg 3 mm hg = 7 mm hg. Pressure needed to prevent fluid movement through a membrane. Proteins have greatest effect between if & plasma. Bcop (blood colloidal osmotic pressure; blood oncotic pressure) Large, non-diffusible molecules (mainly albumins; topics 1, 8 and 9) 28 mm hg 8 mm hg = 20 mm hg. Normally does not change significantly along length of capillary. = (chp - ifp) (bcop - icop) Nhp arterial end = 30 mm hg (-3) mm hg = 33 mm hg venule end = 10mm hg (-3)mm hg = 13 mm hg. Nop = 28 mm hg 8 mm hg = 20 mm hg normally little change along length of capillary. Nfp (arterial) = 33 mm hg 20 mm hg = 13 mm hg. Nfp (venule) = 13 mm hg 20 mm hg = - 7 mm hg. Net loss of fluid from plasma to if.