Human Anatomy & Physiology (9th Edition)

Published by Pearson
ISBN 10: 0321743261
ISBN 13: 978-0-32174-326-8

Chapter 20 - The Lymphatic System and Lymphoid Organs and Tissues - Review Questions - Page 762: 13


Arteries take blood (fluid) away from the heart. Lymph is fluid that comes from interstitial spaces between cells. This fluid enters the lymphatics by diffusion and through spaces between lymph capillary endothelial cells. Lymph capillaries have closed ends and lymphatics have one way valves . Consequently lymph flows toward one destination-- towards the heart. The lymphatic system is not a circulatory system

Work Step by Step

The lymphatic system is not a circulatory system. It takes lymph to one destination-- towards veins and eventually the heart,. There is no need for arteries to take fluid back to the lymphatic system. The fluid in the lymphatic system is interstitial fluid picked up by lymph capillaries from interstitial spaces
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