What is an Artery?
An artery is a blood vessel that carries blood away from the heart, where it branches into even smaller vessels. Eventually the smallest arteries, vessels called arterioles, further branch into tiny capillaries, where nutrients and waste are exchanged.
What is a Vein?
A vein is a blood vessel that conducts blood toward the heart. Compared to arteries veins are thinly walled.
Difference between Arteries and Veins
|1||Artery carries blood away from heart||Veins carries blood towards the heart.|
|2||Artery is a resistance vessel||Vein is a capacitance vessel|
|3||An artery is thicker than a vein||Veins are comparatively thinner|
|4||Pulmonary artery carries deoxygenated blood||Pulmonary vein carries oxygenated blood|
|5||Arteries have got more rigid walls||Veins have comparatively thinner walls|
|6||The thickest muscular layer in the walls of artery is tunica media||The thickest muscular layer in the walls of artery is tunica adventitia|
|7||Blood flow in artery is always under high-pressure||Blood flow in vein is calmer|
|8||Arteries are red in colour||Veins are blue in color|
|9||At the time of death, arteries empty up.||At the time of death, veins get filled up.|
|10||Arteries lumen are narrow||Veins lumen are wide|