Difference Between Elastic and Muscular Arteries

Elastic arteries contain larger numbers of collagen and elastin filaments in their tunica media than muscular arteries do, giving them the ability to stretch in response to each pulse. Elastic arteries include the largest arteries in the body, those closest to the heart, and give rise to the smaller muscular arteries.

What is the difference between elastic arteries and muscular arteries quizlet?

elastic arteries: more elastic fibers and less smooth muscle in their tunica media;muscular arteries:more smooth muscle and fewer elastic fibers.

What are muscular arteries?

A muscular artery (or distributing artery) is a medium-sized artery that draws blood from an elastic artery and branches into "resistance vessels" including small arteries and arterioles. Their walls contain larger number of smooth muscles, allowing them to contract and expand depending on peripheral blood demand.

What arteries are elastic?

Elastic arteries are those nearest the heart (aorta and pulmonary arteries) that contain much more elastic tissue in the tunica media than muscular arteries. This feature of the elastic arteries allows them to maintain a relatively constant pressure gradient despite the constant pumping action of the heart.

What are the three types of arteries?

There are three main types of arteries:

• Elastic arteries.
• Muscular arteries.
• Arterioles.

What is the functional importance of elastic arteries?

Elastic arteries differ from muscular arteries both in size and in the relative amount of elastic tissue contained within the tunica media. Arterial elasticity gives rise to the Windkessel effect, which helps to maintain a relatively constant pressure in the arteries despite the pulsating nature of blood flow.

What is the function of elastic arteries quizlet?

Elastic arteries function as a pressure reservoir. Muscular arteries have smooth muscle and fewer elastic fibers than elastic arteries. Elastic arteries are called distributing arteries.

What are the 4 major arteries?

The right coronary artery, the left main coronary, the left anterior descending, and the left circumflex artery, are the four major coronary arteries.

What is another name for elastic arteries?

An elastic artery (conducting artery or conduit artery) is an artery with many collagen and elastin filaments in the tunica media, which gives it the ability to stretch in response to each pulse.

What happens when arteries lose elasticity?

Atherosclerosis occurs when your arteries become clogged with fatty deposits (plaque), causing them to lose their elasticity and become narrower. Plaque is a sticky mixture of fatty streaks that build up, making the walls of the arteries thick and hard. Over time, the artery narrows or gets blocked.

Are veins more elastic than arteries?

Just like the arterial system, three layers make up the vein walls. But unlike the arteries, the venous pressure is low. Veins are thin-walled and are less elastic. This feature permits the veins to hold a very high percentage of the blood in circulation.

Why arteries are thick and elastic?

Arteries carry oxygenated blood from the heart to the different body parts. Blood emerges from the heart under high pressure. In order to withstand this pressure, arteries have thick and elastic walls.

Are coronary arteries muscular or elastic?

2.2 Plaque structural constituents. The coronary artery is classified as a muscular artery type and thus has fundamental differences in ultrastructure in comparison with the elastic arteries of the aorta, carotid, and iliac vasculature.

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