Question

Which is the thinnest blood vessels ​

Answer 1

Answer:

The aorta branches into arteries, which eventually branch into smaller arterioles. Arterioles carry blood and oxygen into the smallest blood vessels, the capillaries. Capillaries are so small they can only be seen under a microscope. The walls of the capillaries are permeable to oxygen and carbon dioxide.

hope it helps you guys

Answer 2

Answer:

cappillaries are the thinnest blood vessels.