Vasa vasorum

Vasa vasorum are small blood vessels that comprise a vascular network supplying the walls of large blood vessels, such as elastic arteries (e.g., the aorta) and large veins (e.g., the venae cavae).

Vasa vasorum
Micrograph showing cystic medial degeneration. The tunica adventitia (also called tunica externia; yellow at bottom of image) with vaso vasorum is also seen. Movat's stain.
Details
Part ofWall of large blood vessels
SystemCirculatory system
Identifiers
LatinVasa vasorum
MeSHD014651
TA98A12.0.00.028
THH3.09.02.0.06001
FMA77433
Anatomical terminology

The name derives from Latin 'the vessels of the vessels'. Occasionally two different singular forms are seen: vasa vasis (from Latin 'the vessels of a vessel') and vas vasis (from Latin 'a vessel of a vessel').

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