FNU 203 Lecture Notes - Lecture 17: Extracellular Fluid, Fluid Compartments, Blood Plasma
1 Nov 2017
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Functions of water- called the forgotten (essential) nutrient a. Anything liquid at room temperature is considered a fluid. Hydrolysis- breaking apart of molecules into smaller ones using molecules. Condensation- the joining of 2 molecules together with water. Ex: sucrose--> 1 molecule of glucose and 1 molecule of fructose. Blood vessels dilate and move closer to the skin to help with heat flow off the body. When it is humid outside, the condensation (sweat) will not evaporate, which makes it harder to cool off g. Solvent- dissolves substances (solutes) in the body i. Fat: adults - ~60%, infants have higher percent h2o composition than adults. Consists of blood plasma, lymph, and interstitial fluid. Flows from high concentration to low concentration b. c. Water loss in the body i. ii. iii. Respiration- water loss due to breathing from the lungs and skin.
