Explanation The rate at which blood is returned to the heart by veins is the same as that of blood pumped from the heart in the arteries during circulation. In order to prevent the flow of blood in the backward direction in the veins, there are structures called venous valves. Venous valves are the two flap-like structures in the veins. They act as barriers and ensure unidirectional blood flow...

5th Edition

ISBN: 9780321861580

Author: Marieb, Elaine N.

Publisher: Pearson College Div

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Question

Chapter 18, Problem 5CYU

Summary Introduction

To review:

The function and formation of venous valves.

Introduction:

Veins are the blood vessels that carry blood towards the heart from various capillary beds. The capillaries unite to form venules and venules join to form veins. The diameter successively increases from the venules to the larger veins. In the veins of limbs, where gravity opposes the upward flow of blood, venous valves are most abundantly found.

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Chapter 18, Problem 4CYU

Chapter 18, Problem 6CYU

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Chapter 18 Solutions

Anatomy & Physiology

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Solution Summary: The author explains the function and formation of venous valves in the veins of the thoracic and abdominal cavity.

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