BIOL 30200 Lecture Notes - Lecture 13: Body Fluid, Chapter 27, Electrolyte
23 Feb 2018
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Pages 1042 1051: electrolytes in body fluids ions are formed when electrolytes dissolve and dissociate. Milliequivalent/l = mmol/l for monovalent ions (na, cl) Meq/l = 2(mmol/l) for divalent ions (mg, ca: osmosis ions are in compartments in the body. Fluid will move from one compartment to another based on the amount of ions. Magnesium is required for atp: concentrations of electrolytes in body fluids fig 27. 8. 2/3 of the body fluid is inside the cell, Extracellular fluid has higher na, cl and hco3 concentrations. Intracellular fluid has higher k, hpo4, and protein anions. 136 148 meq/l in blood plasma amounts for half of the osmolarity of extracellular fluid. It is controlled by aldosterone, adh and anp. Plays a big role in action potential and graded potential: chloride. 95-105 meq/l can move easily between compartments and follow sodium; water follow it. Opening of chloride channels causes hyperpolarization: potassium.
