Tunica Media
Synonyms
Arterial Media
Arterial Medias
Media, Arterial
Media, Vascular
Media, Venous
Medias, Arterial
Medias, Vascular
Medias, Venous
Vascular Media
Vascular Medias
Venous Media
Venous Medias
The middle layer of blood vessel walls, composed principally of thin, cylindrical, smooth muscle cells and elastic tissue. It accounts for the bulk of the wall of most arteries. The smooth muscle cells are arranged in circular layers around the vessel, and the thickness of the coat varies with the size of the vessel.