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adventitia

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
adventitia /ad·ven·ti·tia/ (ad″ven-tish´e-ah)
ad·ven·ti·tia (dvn-tsh)
n.
The outermost membranous covering of an organ or structure, especially the outer coat of an artery.

adventitia
[ad′ventish′ə]
Etymology: L, adventitius, coming from abroad
the outermost layer, composed of connective tissue with elastic and collagenous fibers, of an artery or another structure.

adventitia
the outer, connective tissue coat of an organ or structure, especially the outer coat of an artery or vein.


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Adjacent arterioles showed reactive fibrinocellular edema in the adventitia and inflammatory infiltrate.
They arise from the chemoreceptor organ (paraganglion) located in the adventitia of the carotid artery bifurcation.
 
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