Tunica media

The tunica media (New Latin 'middle coat'), or media for short, is the middle tunica (layer) of an artery or vein. It lies between the tunica intima on the inside and the tunica externa on the outside.Artery wallVeinSection of a medium-sized arteryMicrophotography of arterial wall with calcified (violet colour) atherosclerotic plaque (haematoxillin & eosin stain) The tunica media (New Latin 'middle coat'), or media for short, is the middle tunica (layer) of an artery or vein. It lies between the tunica intima on the inside and the tunica externa on the outside. Tunica media is made up of smooth muscle cells, elastic tissue and collagen. It lies between the tunica intima on the inside and the tunica externa on the outside.