KIN408 Study Guide - Midterm Guide: Pulse Pressure, Windkessel Effect, Great Arteries

• School: University of Waterloo
• Department: Kinesiology
• Course: KIN408
• Professor: Christopher Vigna

Document Summary

Exchange at one cell layer thick capillaries: has a huge sa for the diffusion of an increased amount of nutrients. Ie: capillaries have more sa than arterioles: venous vascular networks converge as it brings deoxygenated blood from body organs to heart. Capillaries venule small vein large vein vena cava (2) This occur as the walls of the aorta recoil due to the decrease of blood pressure in diastole. The peak pressure of aortic pp = systolic pressure. The minimal pressure of aortic pp = diastolic pressure. These values are not the primary pressures that drive blood to organs. That is the mean arterial pressure (calculated as average pressure/ time) Structure of blood vessels: contain smooth muscle cells change the force by altering the diameter of the vessel, three layers, adventitia collagen, fibroblasts, vasa vasorum, nerves, media smooth muscle, collagen and elastic. Elastic tissue increases compliance: more elastic tissue in aorta and arteries.