PSL301H1 Lecture Notes - Lecture 20: Fluid Compartments, Ouabain, Lipid Bilayer
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PSL301H1 Full Course Notes
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Fat has very little water; muscle has a lot of water (muscle contains the most water in the body) On average, women, older individuals and those with chronic illnesses contain less muscle - more fat in comparison as a result (ie. contain less water) 3 different compartments intracellular fluid and extracellular fluid (interstitial fluid or plasma) Icf and ecf (80% interstitial fluid and 20% plasma) Thus, 28 l in the icf and 14 l in the ecf (thus, the total body water is about. ** thus, based on body weight and other factors, we can predict an individual"s total body water; we can also determine the distribution of this body water ** Provides a channel for rapid movement of water across all plasma membranes. Osmolality not the same as osmolarity. ** osmolality is the same in each fluid compartment as soon as a gradient is established, water would move across to re-establish equilibrium **
