The tunica media of an elastic artery is main | vedclass

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(C) The wall of an artery consists of three layers: the tunica intima,tunica media,and tunica externa. In elastic arteries (such as the aorta),the tun

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Elastic fibres

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(C) The wall of an artery consists of three layers: the tunica intima,tunica media,and tunica externa. In elastic arteries (such as the aorta),the tunica media is the thickest layer and is characterized by a high concentration of elastic fibres arranged in concentric lamellae. These elastic fibres allow the artery to expand and recoil to accommodate the pressure changes during the cardiac cycle. While smooth muscle fibres are present,the defining structural feature of the tunica media in elastic arteries is the abundance of elastic fibres.

The tunica media of an elastic artery is mainly composed of:

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