elastic artery


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e·las·tic ar·ter·y

a large artery, such as the aorta or pulmonary artery, with many fenestrated membranes (composed of elastic sheaths) in its tunica media.
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elastic artery

A large artery in which elastic connective tissue is predominant in the middle layer (tunica media). Elastic arteries include the aorta and its larger branches (brachiocephalic, common carotid, subclavian, and common iliac), which conduct blood to the muscular arteries.
See also: artery
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