HLSC 2110U Lecture Notes - Lecture 19: Extracellular Fluid, Fluid Compartments, Water Conservation
27 Mar 2019
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Intracellular fluid compartment: extracellular fluid compartment, some water is present in the blood and in the interstitial fluid as well. Inlet is what we drink or though iv. Outlet what goes in the urine and out of the body. Insensible loss can be through sweating and/or breathing (evaporation) Nervous system is most sensitive to fluid loss. Blood will be thicker less nutrient and gas exchange. Varies due to heat, kidney malfunctioning, less water or urine formed, someone taking diuretics. If we do not drink enough water, adh is a hormone that controls diuresis: decides on what the kidney will keep and lose. Shortage of water is based on plenty of sodium hypothalamus sends a signal out to the posterior pituitary gland to release adh. Sodium content is minimal means there is plenty of water, therefore. Adh is reduced and water loss from kidneys is increased. When there is plenty of sodium, aldosterone is inhibited.
