Which vessel type typically has an internal diameter of about 30 μm and has a tunica media comprised of 1-2 layers of smooth muscle cells?

Question

Quizplus · Accepted Answer

Arterioles typically have an internal diameter of about 30 μm and have a tunica media comprised of 1-2 layers of smooth muscle cells, making them the best choice for this question. Capillaries have a much smaller diameter and do not have a tunica media, while muscular arteries and elastic arteries have larger diameters and more complex structures. Venules have a similar structure to capillaries but are larger in diameter.

Which Vessel Type Typically Has an Internal Diameter of About