PHGY 209 Study Guide - Midterm Guide: Immunoglobulin G, Tetrapeptide, Bilirubin

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Document Summary

Fundamental principal - functional activities are directed at maintaining homeostasis. Homeostasis: the relative constancy of the milieu interior (internal environment) Environment surrounding cells is vastly different from external environment. Internal conditions are relatively constant under conditions of health. Variations of water content in bone (25%) and fat (10%) Other tissues: skin, muscle, heart, liver, brain, kidney (70%-80%) Lean body mass: when no fat is taken into account. No significant variations of water in individuals if computed as lean body mass. Adult water turnover/day is 3-4% of total body weight. Constant body water volume maintains adequate supply of o2 to blood through. Not rigid - water exchanges freely between them. Intracellular fluid (icf) fluid inside cells (40%) Extracellular fluid (ecf) fluid outside cells (20%) Fluid medium in which the blood cells are suspended (5%) The percentage of blood volume that is occupied by rbc. Blunt ended terminal tubules converge into larger lymphatic vessels.