Pathophysiology
Pathophysiology
6th Edition
ISBN: 9780323354813
Author: Jacquelyn L. Banasik PhD ARNP
Publisher: Saunders
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Chapter 15, Problem 1KQ
Summary Introduction

To answer: How do the structures of arteries, capillaries, veins, and lymphatics differ and how these differences reflect on each of its function?

Introduction: The transportation of oxygen and nutrients and exclusion of metabolic waste products from the body are the primary functions of the circulatory system. This system is involved in circulating blood and lymph throughout the body. It consists of a heart, lymph, blood, blood vessels, lymphatic vessels, and glands.

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The arteries and veins possess three distinct layers. The primary tissue of the arteriole is made up of smooth muscles, whereas the veins are primarily made up of connective tissues. The smooth muscles of the arteries are found to be reflective with their capacity in order to withstand high pressures. Also, they respond to certain changes in the body by contraction or relaxation of the arteries.

The capillaries are made up of a single layer of endothelial cells that were attached to the basement membrane spacing between the endothelial cells. This would allow the entry of certain components to pass in and out of the capillaries thereby allowing the fluid and cellular exchange.

The lymphatic vessels possess thin valves and walls resembling that of the veins. These thin walls and valves aid in adsorption and flow of lymph through the lymphatic vessels.

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