Assertion: blood vessel's layer | /r/HasProperty | the tunica externa
Facets:
Source sentences:
text: The walls of most blood vessels have three distinct layers: the tunica externa, the tunica media, and the tunica intima.
text: Arteries and veins contain three layers: Tunica externa (outer layer) - comprised of elastic and collagen fibres
text: The outermost layer, which attaches the vessel to the surrounding tissue, is the tunica externa or tunica adventitia.
text: The outermost layer is the tunica externa or tunica adventitia, composed entirely of connective fibers and surrounded by an external elastic lamina which functions to anchor vessels with surrounding tissues.
text: One more layer is the tunica externa made of connective tissue that’s mostly collagen fibers.