PATHOLOGY

Detailed explanation-1: -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: -The blood vessels The lumen size decreases in the arterioles averaging 30 m, which helps generate most systemic vascular resistance. Arterioles are also called resistance vessels due to their ability to increase vascular resistance, which is a significant determinant of blood pressure.

Detailed explanation-3: -Arterioles are small arteries that deliver blood to capillaries. Arterioles control blood flow through capillary beds by contracting or dilating the the size of the lumen, and therefore the tunica media layer contains concentric rings of smooth muscle to do this.