EHS 150 Lecture Notes - Lecture 10: Vasopressin, Aldosterone, Reagent
4 Jan 2017
School
Department
Course
Professor
Document Summary
Important for maintaining the proper ph, a measure of the level of acidity or alkalinity of a solution. Antidiuretic hormone (adh ) acts on kidneys to increase water reabsorption. As water loss increases, the adverse effects of dehydration increase in severity. May occur in certain situations during exercise, if too much plain water is used to replenish lost sweat. Major minerals: needed >100 mg/day or present >0. 01% of body weight. Trace minerals: needed 100 mg/day or present 0. 01% of body weight. Absorption efficiency changes dependent on nutritional status and life stage. Substances present in the gi tract at the same time. Binders such as phytic acid (phytate), tannins, and oxalates reduce absorption. Electrolytes are substances (mineral salts) that dissociate in water to form charged ions. The distribution of these mineral salts affects distribution of water. The properties of these minerals affect nerve and muscle functions. Sodium, potassium, and chloride are the principle electrolytes in body fluids.
