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The tunica media if the aorta would have a much greater proportion of what type of tissue than a small artery?
Elastic Fibers, the aorta has much more pressure exerted on its walls than small arteries. The elastic fibers allow it to handle the pressure and acts as a second pump when the heart is relaxing (the aorta distends during heart contraction and returns to shape during relaxation of the heart, pushing blood along even when the heart isn't contracting) to keep blood flowing through the arterial system.
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The outermost layer of an artery or vein is called the?
The outer layer is called the tunica externa (or tunica adventitia) and is composed mostly of connective tissue
Three layers of arteries?
The outermost layer is known as the tunica externaformerly known as "tunica adventitia" and is composed ofconnective tissue. Inside this layer is thetunica media, ormedia, which is made up ofsmooth musclecells and elastic tissue. The innermost layer, which is in direct contact with the flow of blood is thetunica intima, commonly called theintima. This layer is made up of mainlyendothelial cells. The hollow internal cavity in which the blood flows is called thelumen.
Why does an artery have such a thick layer?
Arteries are not one cell thick. They are multicelluar in their formation. They contain three distinct layers; tunica interna (or intima made of endothelial tissue), tunica media (muscular tissue), and tunica externa (serous membrane).
Which layer of the artery wall thickens most in atherosclerosis?
The tunica media is the thickest layer of of an artery
The main component of the tunica media of muscular arteries is?
Tunica Media or just Media is the central layer of arteries or veins. In the artery, it is composed of elastic tissue and smooth cell muscles.
The outermost layer of an artery or vein is called the?
The outer layer is called the tunica externa (or tunica adventitia) and is composed mostly of connective tissue
The tunica media of the aorta would have a much greater proportion?
Elastic fibres
Three layers of arteries?
The outermost layer is known as the tunica externaformerly known as "tunica adventitia" and is composed ofconnective tissue. Inside this layer is thetunica media, ormedia, which is made up ofsmooth musclecells and elastic tissue. The innermost layer, which is in direct contact with the flow of blood is thetunica intima, commonly called theintima. This layer is made up of mainlyendothelial cells. The hollow internal cavity in which the blood flows is called thelumen.
Which tunic of the artery contains endothelium?
tunica media
Why does an artery have such a thick layer?
Arteries are not one cell thick. They are multicelluar in their formation. They contain three distinct layers; tunica interna (or intima made of endothelial tissue), tunica media (muscular tissue), and tunica externa (serous membrane).
What part of an arterial wall is largely composed of connective tissue?
most of the stomachs villi has alot of connective tissue, that is where there is the most concentration.
Which layer of the artery wall thickens most in atherosclerosis?
The tunica media is the thickest layer of of an artery
The main component of the tunica media of muscular arteries is?
Tunica Media or just Media is the central layer of arteries or veins. In the artery, it is composed of elastic tissue and smooth cell muscles.
What outer layer of blood vessels is composed of connective tissue?
connectiveThe outer layer of a blood vessel (artery or vein) is called the tunica externa or tunica adventitia.See http://training.seer.cancer.gov/module_anatomy/unit7_3_cardvasc_blood1_classification.htmlpericardium is the layer of the blood vessel that is made of tough connective tissue.
Which tunic of an artery is most responsible for maintaining blood pressure?
Tunica Media
Which artery wall is responsible for vasoconstriction?
the tunica media
Where do the smooth muscles fibers in the artery receive their nutrients from?
Arteries are part of the cardiovascular organ system. Arteries have three layers, or tunics, of tissue, that form around the lumen (the open internal area of the artery where the blood flows), the tunica interna, the tunica media, and the tunica externa. The tunica externa has small vessels within its layer which provides smooth muscle fibers with a blood supply containing the needed nutrients and oxygen. The small vessels that supply blood to the smooth muscle tissues of the artery are called "vasa vasorum" or vessels to the vessels.
