MICROANATOMY

Detailed explanation-1: -The tunica media is the substantial middle layer of the vessel wall (see Figure 2). It is generally the thickest layer in arteries, and it is much thicker in arteries than it is in veins.

Detailed explanation-2: -The tunica media, or middle coat, is thicker in arteries, particularly in the large arteries, and consists of smooth muscle cells intermingled with elastic fibres.

Detailed explanation-3: -The tunica media is the thickest tunic; it is predominantly muscular in arterioles and most arteries, and it is predominantly elastic in the largest arteries (the so-called elastic arteries such as the aorta and the common carotid).

Detailed explanation-4: -The tunica media is the thickest layer of the arterial wall and is composed of elastic fibers, SMCs, fibroblasts and extracellular matrix.