BPK 110 Lecture Notes - Lecture 8: Angiotensin, Vasoconstriction, Extracellular Fluid
19 Oct 2015
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Kin 110 ch8- part 1: water rita available 1030-110 part 3 diet analysis due next week. Found inside 1/3rd and outside 2/3rd of cells. Water content of intra/extracell, spaces depends on solute concentrations (proteins, sodium, potassium, etc. ) Certain reactions in the body produce water (condensation reactions= when two molecules come together and bond at the oxygen we lose water, so we get water through metabolism) Main output is through urine, feces, and evaporation, sweating. Adequate water levels maintain blood volume, which helps maintain blood pressure. Maintaining blood pressure is critical for nutrient delivery. The construction of blood vessels (vasoconstriction) and heart rate also maintain blood pressure. Thirst reflex, kidneys also help maintain blood pressure. Blood pressure has to be maintained so we can maintain blood volume: antidiretic hormone (adh, angiotensin ii, aldosterone. ^ 3 main hormones that promote thirst, vasoconstriction or lowers water loss at kidneys. Hormone is a molecule that is secreted somewhere and is used somewhere else.
