Definition of Adventitia

1. Noun. An enveloping or covering membrane or layer of body tissue.

Exact synonyms: Tunic, Tunica
Generic synonyms: Membrane, Tissue Layer
Specialized synonyms: Albuginea
Derivative terms: Adventitial



Definition of Adventitia

1. Noun. (anatomy histology) The outermost layer of epithelial tissue encasing a visceral organ. ¹

¹ Source: wiktionary.com

Definition of Adventitia

1. [n -S]

Medical Definition of Adventitia

1. The outermost connective tissue covering of any organ, vessel, or other structure not covered by a serosa; instead, the covering is properly derived from without (i.e., from the surrounding connective tissue) and does not form an integral part of such organ or structure. Synonym: tunica adventitia, membrana adventitia. Origin: L. Adventicius, coming from abroad, foreign, fr. Ad, to + venio, to come (05 Mar 2000)

Adventitia Pictures

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Lexicographical Neighbors of Adventitia

advection
advection fog
advection fogs
advections
advective
advectively
advects
advene
advened
advenement
advenements
advenes
advenient
advening
advent
adventitia (current term)
adventitial
adventitial cell
adventitial neuritis
adventitias
adventitious
adventitious albuminuria
adventitious bursa
adventitious cyst
adventitious root
adventitiously
adventitiousness
adventive
adventives
advents

Literary usage of Adventitia

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Gross and Minute Anatomy of the Central Nervous System by Herman Camp Grodinier, H. C. Cordinier (1899)
"The Tunica adventitia.—The tunica adventitia of the larger arteries is composed of connective tissue continuous with the pia mater. ..."

2. The Medical Times and Gazette (1885)
"At no period of the process, except perhaps just at the point of ligature, is there any very active cell-proliferation in the adventitia or media ..."

3. A Biennial Retrospect of Medicine, Surgery and Their Allied Sciences by New Sydenham Society (1875)
"In the affected regions nucleated cells were present both in the tissue and in the adventitia of the large vessels, at some points so accumulated as to give ..."

4. Handbook of Diseases of the Skin by Hugo Ziemssen (1885)
"... of the infiltration, for the cells of the adventitia and its surroundings proliferate largely. Fio. 65. ..."

5. A text-book of mental diseases: with special reference to the pathological by William Bevan Lewis (1899)
"... Cells—Three Stages of Morbid Evolution:—Inflammatory Engorgement—Implication of Pia Arachnoid—Nuclear Proliferation on adventitia—Paralysis of Arterial ..."

6. Quarterly Journal of Microscopical Science edited by Biologists Limited, The Company of. (1874)
"The superficial division gives off a few fibres, which enter the adventitia (a), and then divides into two branches ; one of these loses itself in the ..."

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