ANP 1105 Study Guide - Final Guide: Tunica Intima, Tunica Externa, Oncotic Pressure

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: William Staines

Document Summary

Anatomy and physiology exam review: blood vessels and hemodynamics, compare and contrast the structure of the walls of arteries, capillaries and veins. Has valves: compare the 3 types of arterial vessels. Recoil helps maintain constant pressure and flow of blood. Tunica media is made up primarily of smooth muscle. Arterioles determine which capillary beds flushed, minute to minute. Also called resistance arteries because changing diameters change resistance to blood flow. 10 um to 0. 3 mm diameter: define microcirculation and compare the three types of capillaries. The flow of blood through the capillary bed. Network of interwoven capillaries between arterioles and venules. Pericytes help stabilize their walls and control permeability. Diameter allows only single rbc to pass at a time. In all tissues except for cartilage, epithelia, cornea and lens of eye. Exchange of gases, nutrients, wastes, hormones, etc. between blood and interstitial fluid. All capillary endothelial cells are joined by tight junctions with gaps called intercellular clefts.