Question

Differentiate between the following pairs Artery and vein (Lumen )
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Answer 1

Explanation:

Arteries are more muscular and have smaller, rounder lumens (internal spaces) than veins. The artery lumen has a wavy endothelium, or inner lining, due to the configuration of elastic tissue beneath it. The endothelium is part of the tunica intima, the innermost layer of the artery wall

Answer 2

Arteries are more muscular and have smaller, rounder lumens (internal spaces) than veins.

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The artery lumen has a wavy endothelium, or inner lining, due to the configuration of elastic tissue beneath it. The endothelium is part of the tunica intima, the innermost layer of the artery wall.