adventitia


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adventitia

 [ad″ven-tish´e-ah]
tunica adventitia. adj., adj adventi´tial.

ad·ven·ti·ti·a

(ad-ven-tish'ă), [TA]
The outermost connective tissue covering of any organ, vessel, or other structure (or part thereof) not covered by a serous coat (visceral peritoneum); instead, the covering is properly derived from without (that is, from the surrounding connective tissue) and does not form an integral part of such organ or structure. Terminologia Anatomica lists adventitia (tunica adventitia) of the following organs: blood vessels, ductus deferens, esophagus, renal pelvis, seminal glands, and ureters.
Synonym(s): tunica adventitia [TA], membrana adventitia (1)
[L. adventicius, coming from abroad, foreign, fr. ad, to + venio, to come]

adventitia

(ăd′vĕn-tĭsh′ə, -vən-)
n.
The membranous outer covering of an organ or a blood vessel.

ad′ven·ti′tial adj.

adventitia

The outermost layer of a visceral organ; e.g., serosa.

ad·ven·ti·ti·a

(ad'vĕn-tish'ă) [TA]
The outermost connective tissue covering of any organ, vessel, or other structure not covered by a serosa.
Synonym(s): tunica adventitia [TA] .
[L. adventicius, coming from abroad, foreign, fr. ad, to + venio, to come]

adventitia

The outer covering or layer of an organ, especially a blood vessel.

ad·ven·ti·ti·a

(ad'vĕn-tish'ă) [TA]
Outermost connective tissue covering of any organ, vessel, or other structure not covered by a serous coat.
[L. adventicius, coming from abroad, foreign, fr. ad, to + venio, to come]
References in periodicals archive ?
Assessment of the IMA medial layer in the different conditions is also compared with the adventitia data and evaluated with correlation analysis to assess the best approach for determining arterial stiffness from IMA samples.
Peault, "The tunica adventitia of human arteries and veins as a source of mesenchymal stem cells," Stem Cells and Development, vol.
From the side of the adventitia, the collagen fibers were thicker, and the outer side of the graft was surrounded by a capsule formed from the connective tissue (Figure 4).
Another approach is to use a 3D modeling for hemodynamic analysis of fluid structure interaction in intima and adventitia. Combining CT, IVUS, and biplane X-ray angiogram images, the authors calculated deformation of intima and adventitia by catheter insertion and generated vessel bifurcations.
Geometric and statistical information obtained by using ultrasound techniques from the intima-media, media, adventitia, blood flow, and surrounding tissues of CCA has important clinical significance for disease diagnosis [30].
The mass was hypoechoic and heterogeneous and involved three-quarters of the circumference of the esophageal lumen, involving all esophageal wall layers to the adventitia. The EUS-FNA examination of the mediastinal lymph nodes revealed no lymphatic spread.
This vasculitis results in granulomatous inflammation of the vessel wall with intimal proliferation and fibrosis of the media and adventitia. TA affects patients mostly in the second and third decades of life, with 80-90% of patients affected with TA being female [1].
The CAD was simple cystic lesion and resection of the cyst with the adventitia was successful.
Three types of esophageal strictures are recognized: type 1: lesions involving the adventitia and tunica muscularis; type 2: esophageal rings or webs that involve mucosa and submucosa; type 3: annular stenosis that involves all layers of the esophageal wall [2].
The 1st layer was the skin from the epidermis to the adventitia of the skeletal muscle.
Furthermore, sections stained by HE of the CES demonstrated perfect fusion between the CES and the adventitia of vein grafts (Figure 3(g)), formation of vasa vasorum in the space between CES and vein grafts (Figure 3(h)), slow degradation of the CES, and infiltration of VSMCs (Figure 3(i)).