WordNet

capable of resuming original shape after stretching or compression; springy; "an elastic band"; "a youthful and elastic walk"
a fabric made of yarns containing an elastic material
able to adjust readily to different conditions; "an adaptable person"; "a flexible personality"; "an elastic clause in a contract" (同)flexible, pliable, pliant
work as an intern; "The young doctor is interning at the Medical Center this year"
an advanced student or graduate in medicine gaining supervised practical experience (`houseman is a British term) (同)interne, houseman, medical intern
deprive of freedom; "During WW II, Japanese were interned in camps in the West"
happening or arising or located within some limits or especially surface; "internal organs"; "internal mechanism of a toy"; "internal party maneuvering"
occurring within an institution or community; "intragroup squabbling within the corporation" (同)intragroup
a thin plate or layer (especially of bone or mineral)

PrepTutorEJDIC

『弾力のある』,伸縮自在の / 融通性のある / ゴムひも;ゴムひもで作った物,靴下留め,ズボンつり
(特に戦時中)〈人・船など〉‘を'強制収容する,抑留する
『内側の』,内部にある / 『国内の』(domestic) / 内からとる,内用の
薄層,薄片,薄板

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/26 11:23:18」(JST)

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Micrograph showing the internal elastic lamina (thin pink wavy line - image edge mid-left to image edge bottom-centre-left). H&E stain.

The internal elastic lamina or internal elastic lamella is a layer of elastic tissue that forms the outermost part of the tunica intima of blood vessels. It separates tunica intima from tunica media.

Histology

It is readily visualized with light microscropy in sections of muscular arteries, where it is thick and prominent, and arterioles, where it is slightly less prominent and often incomplete.^[1] It is very thin in veins and venules.^[1] In elastic arteries such as the aorta, which have very regular elastic laminae between layers of smooth muscle cells in their tunica media, the internal elastic lamina is approximately the same thickness as the other elastic laminae that are normally present.^[2]

There is small amount of subendothelial connective tissue between basement membrane of endothelial cells and internal elastic lamina.^[3]

Reduplication of internal elastic lamina can be seen in elderly individuals due to intimal fibroplasia, which is part of the aging process.^[4]

Associated pathologic conditions

Demonstration of fragmentation in this layer by elastin-van Gieson stain aids in diagnosis of giant cell arteritis. It stains muscle tissue in yellow, connective tissue in red and elastic structures (like internal elastic lamina) in black color.^[4]
In chronic allograft nephropathy, disruption or reduplication of internal elastic lamina can be observed, which causes narrowing of the lumen and downstream ischemia.^[5]
In fungal rhinosinusitis, the organism has predilection for internal elastic lamina during phase of spread.^[6]

References

^ ^a ^b http://www.lab.anhb.uwa.edu.au/mb140/corepages/vascular/vascular.htm
^ http://www.ouhsc.edu/histology/text%20sections/cardiovascular.html
^ Histology Image Review. McGraw-Hill. 2007. pp. (Fig. 9–25).
^ ^a ^b Lee, K. Weng Sehu, William R. (2005). Ophthalmic pathology : an illustrated guide for clinicians. Malden: Blackwell publishing. pp. 10, 98, 219. ISBN 9780727917799.
^ Clinical Nephrology Dialysis and Transplantation. Dustri-Verlag Feistle. 2004. pp. 21, 22 (of section III–5).
^ Zinreich, David W. Kennedy, William E. Bolger, S. James (2001). Diseases of the sinuses : diagnosis and management. Hamilton, Ont.: B.C. Decker. p. 192. ISBN 1-55009-045-3.

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English Journal

Histological analysis of clipped human intracranial aneurysms and parent arteries with short-term follow-up.

Killer-Oberpfalzer M, Aichholzer M, Weis S, Richling B, Jones R, Virmani R, Cruise GM.SourceResearch Institute of Neurointervention/Department of Neurology, Paracelsus Medical University, Christian Doppler Clinic, Ignaz Harrer Strasse 79, 5020 Salzburg, Austria.
Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology.Cardiovasc Pathol.2012 Jul;21(4):299-306. Epub 2011 Nov 18.
BACKGROUND: Surgical clipping of intracranial aneurysms is the gold standard for the prevention of rupture. However, the biological processes that occur following clipping are poorly understood. To better understand these effects, retrieved and clipped human intracranial aneurysms were examined hist
PMID 22100991

Intimal Hyperplasia: slow but deadly.

Mills B, Robb T, Larson DF.SourceCirculatory Sciences Graduate Perfusion Program, The University of Arizona, Tucson, AZ, USA.
Perfusion.Perfusion.2012 Jun 29. [Epub ahead of print]
Intimal hyperplasia is the leading cause of long-term failure in coronary artery bypass vein grafting, coronary artery stenting, angioplasty, arteriovenous fistula for dialysis, and allograft transplantation. Intimal hyperplasia is a product of vascular smooth muscle cell proliferation, migration th
PMID 22751382

Japanese Journal

粘着層付き薄膜を有する制振機構の提案

大久保洋志,渡辺直行,峯杉賢治,小野田淳次郎
日本航空宇宙学会論文集 = Journal of the Japan Society for Aeronautical and Space Sciences 59(686), 55-60, 2011-03-05
… In this model, the characteristics of elements are correlated with non-linear internal phenomena of polymer. …
NAID 10028049143