Tunica Media

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.

Year introduced: 1993

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Do not include MeSH terms found below this term in the MeSH hierarchy.

Tree Number(s): A07.015.733

MeSH Unique ID: D017540

Entry Terms:

• Vascular Media
• Medias, Vascular
• Media, Vascular
• Vascular Medias
• Arterial Media
• Arterial Medias
• Media, Arterial
• Medias, Arterial
• Venous Media
• Medias, Venous
• Media, Venous
• Venous Medias

Previous Indexing:

• Muscle, Smooth (1966-1979)
• Muscle, Smooth, Vascular (1980-1992)
• specific blood vessel (1966-1992)

All MeSH Categories
Anatomy Category
Cardiovascular System
Blood Vessels
Tunica Media
Muscle, Smooth, Vascular