ANATOMY

Detailed explanation-1: -What are arterioles? An arteriole (är-’tir-ē-, ōl) is a very small blood vessel that branches off from your artery and carries blood away from your heart to your tissues and organs. Arterioles are small arteries that link up to capillaries, which are smaller yet.

Detailed explanation-2: -Arterioles: Arteries branch into smaller vessels called arterioles. Both arteries and arterioles are very flexible. They get bigger or smaller to help maintain your body’s blood pressure.

Detailed explanation-3: -The aorta carries blood from your heart to your organs. Arteries have smaller branches called arterioles. Both arteries and arterioles change in size to maintain your body’s blood pressure level.

Detailed explanation-4: -Capillaries are the smallest blood vessels in the body. How small are they? About ten of them equal the thickness of one human hair, and most are so small that only one blood cell can pass through them at a time. Explain that smoking harms your blood cells and blood vessels, including tiny capillaries.

Detailed explanation-5: -Arterioles face a smaller blood pressure, meaning they don’t need to be as elastic. Arterioles account for most of the resistance in pulmonary circulation because they are more rigid than larger arteries. Furthermore, the capillaries branch off of arterioles and are a single-cell layer.