Liberal Dictionary English Dictionary
noun Anatomy.
- the external covering of an organ or other structure, derived from connective tissue, especially the external covering of a blood vessel.
noun
- the outermost covering of an organ or part, esp the outer coat of a blood vessel
n.
- The outermost membranous covering of an organ or structure, especially the outer coat of an artery.
Tunica adventitia | anatomy | Liberal Dictionary
Adventitia – Wikipedia
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Types of blood vessels: Veins Arteries Common structures Tunica
1: Blood vessel anatomy-The vessel wall is made up of three layers