Which type of arteries dampen the pulsatile pressure from the heart and include the aorta?

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Elastic arteries are designed to dampen the heart's pulsatile pressure. They have a lot of elastic tissue in their walls, making them highly compliant. When the heart ejects blood into the aorta, these arteries stretch and store some of the energy. Then, during diastole, the elastic recoil of the walls releases that energy, helping to maintain blood pressure and smooth out flow so the pressure wave that reaches downstream vessels isn’t as spiky. The aorta itself is one of these elastic arteries, which is why it plays a key role in pulse dampening. In contrast, muscular arteries rely more on smooth muscle to direct blood flow and have less elastin, capillaries are tiny exchange vessels with thin walls, and arterioles act mainly as resistance vessels that regulate flow into capillary beds rather than dampen pulsatile pressure on a large scale.