BIOL 382 Study Guide - Final Guide: Baroreceptor, Receptive Field, Presbyopia
Document Summary
Hematocrit is % of blood that is composed of rbcs. Sample of blood in centrifuge, hematocrit will be at bottom of test tube. Wbcs thin layer on top and thick plasma layer of wbcs. To get value of hematocrit, you divide the hematocrit value over the total volume. The average value for men is 48%, and women is 44% Water moving in, causing them to swell. 2nd point is isotonic b/c as moving up still hypotonic, when moving down will become more hypertonic, therefore in between is isotonic. Above the line, water moves into the cell, the red blood cells swell increasing the hematocrit value. In an extremely hypotonic solution, water will flood into rbcs and they will burst upon contact. This is seen when they are placed in distilled water. In a slightly hypotonic environment, then they will just swell.
