Physiology 3120 Study Guide - Midterm Guide: Putamen, Caudate Nucleus, Basal Ganglia

• School: Western University
• Department: Physiology
• Course: Physiology 3120
• Professor: Tom Stavraky

Document Summary

Homeostasis, negative feedback control systems: physiology: study of function in living organism, looks at how organisms control their internal environments, takes into account physical & chemical factors responsible for normal function. Body fluid compartments and membrane transport: membranes are needed to separate units allows for complex function, are selectively permeable allows nutrients in, waste out. Body fluid compartments: for 70kg person, total body water = 42l (60% of mass, intracellular fluid (icf) = 28 l (67% tbw, extracellular (ecf) = 33% tbw. Plasma = 3 l (6%) --> watery portion of the blood: extracellular fluid is essentially the internal environment bathing cells. Extracellular fluid transport: there are two stages involved in moving fluid from extracellular space to intracellular, 1. Fluid moves between capillaries and cells: movement by diffusion isn"t efficient over long distances, usually, however, cells aren"t more than 25-50 microns from capillary. Phospholipids: form a lipid bilayer, hydrophilic, polar phosphate head, hydrophobic, fatty acid, non polar tails.