The three tunics of a blood vessel and their differences. Introduction: There are three major categories of blood vessels- veins, arteries, and capillaries. These three kinds of vessels often differ in the histological structure of their walls, apart from their location and direction of flow of blood.

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Chapter 21.1, Problem 1BYGO

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The three tunics of a blood vessel and their differences.

Introduction:

There are three major categories of blood vessels- veins, arteries, and capillaries. These three kinds of vessels often differ in the histological structure of their walls, apart from their location and direction of flow of blood.

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