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 5CYU

Summary Introduction

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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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