PATHOLOGY

Detailed explanation-1: -With each heartbeat, blood is forced into the arteries causing them to dilate (expand). Then the arteries contract (recoil) as the blood moves further along in the circulatory system.

Detailed explanation-2: -The contraction of the atria and ventricles makes a heartbeat.

Detailed explanation-3: -Answer and Explanation: As blood enters the artery, the walls of these vessels expand and contract, which can be felt as the pulse where the arteries runs close to the body surface. It is common to detect the pulse with a few fingers placed on the radial artery on the wrist, or the carotid artery in the neck.