ANP 1105 Study Guide - Final Guide: Brainstem, Pulmonary Vein, Air1

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Joanne Savory

Document Summary

4. 3. 1 structure of the walls and arteries of veins arteries arterioles capillaries venules veins: arteries carry blood away from the heart, veins carry blood toward the heart, only capillaries directly serve cells. Artery = thicker wall, also has elastic tissue, required to stretch because of systolic pressure. Vein= doesn"t have elastic tissue, deals with diastolic pressure, has valves to prevent backflow of blood, important in our lower limbs. Vasa vasorum: delivers oxygen and draining oxygen poor blood to particular tissues. Capillaries: consist of single layer of flat endothelial cells, and basement membrane, promote exchange so we want thin of a wall as possible. 4. 3. 3 microcirculation and the three types of capillaries: continuous capillaries o. : places where we want to protect the surrounding tissue, limited passage of solutes: uninterrupted linings, fenestrated capillaries, found where we need transpo of things, tissues like small intestine, endocrine organs etc.