Physiology 2130 Study Guide - Final Guide: Peripheral Chemoreceptors, Extracellular Fluid, Baroreceptor
18 Apr 2015
School
Department
Course
Professor
Document Summary
O2 carried in blood dissolved in plasma carried in rbc"s attached to protein called hemoglobin. Hemoglobin = carries a lot of o2. Little o2 transported to blood dissolved in plasma. This way of transporting oxygen is very inadequate only 1. 5% of total oxygen transported in blood. Arterial po2 of 100 mmhg, only 3ml of oxygen per liter of blood. Roughly 5l of blood, have a total of 15ml of oxygen dissolved in our body. Oxygen transport red blood cells and hemoglobin. Each molecule of hemoglobin (hb) carries 4 oxygen molecules. Large enough to squeeze through smallest of capillaries single file. Early stage of development = have a nucleus. Why do men have more than women? b/c of male sex hormone testosterone on rbc production. Requires presence of: amino acids, folic acid, vitamin b12. Aa and folic acid needed b/c important components of hemoglobin. Folic acid is essential for the formation of new dna and for normal cell division.
