what is the difference between artery and vein ?
The major difference is the thickness of their walls ..arterie have thick tunica media and have smooth muscles fibres n also some elastic fibres while in veins thre is large tunica adventia ..and artey carries oxygenated blood while veins carry deoxygenated blood except pulmonary artey n vein
Qrtries carry oxigenated blood away from the heart to all the tissue include heart (carronary art ) and veins deoxyegenated blood to the heart ,veins has valves but Art don'nt . there some microscopic diference also such as the Media layer of artries are thick but in artries it is thin ...
Artries carry oxigenated blood away from the heart to whole body parts include heart also e.g carronary Art .veins collect de oxygenated blood from the whole body ..On the basis of microscopic structer viens MEDIA layer is thicker then Artries ...
