Assertion: circulatory system's vein | /r/HasProperty | three coats
Facets:
Source sentences:
text: Similar to arteries, veins are also composed of three coats: tunica adventitia, tunica media, and tunica intima.
text: A vein is also made of the same three coats, its diameter is larger than that of a corresponding artery but its wall is much thinner because the tunica media is extremely thin with no muscles, tunica externa makes up the wall largely.