NEET PG DENTAL EXAM

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 walls of arteries are strong and elastic and can expand and contract to lower or increase blood pressure, according to your needs. Blood pressure is the pressure of your blood on the walls of the arteries as your heart pumps blood around the body.

Detailed explanation-3: -Muscular: These arteries contain less elastin and more smooth muscle fiber. The elastic arteries feed into muscular arteries, and the smooth muscle fibers allow them to expand and contract to control blood flow. Examples of these arteries are the coronary and femoral arteries.

Detailed explanation-4: -The contraction of the atria and ventricles makes a heartbeat.