Answer
Apr 04, 2025 - 10:05 AM
The three types of tunics typically refer to the layers of tissue that make up the walls of blood vessels. These are the tunica intima, the innermost layer that is in direct contact with the blood; the tunica media, the middle layer composed primarily of smooth muscle; and the tunica externa (or adventitia), the outermost layer that provides structural support and protection. These layers play crucial roles in the function and integrity of the vascular system.
