Morphology and function of Bast's valve: additional insight in its functioning using 3D-reconstruction

被引：27

作者：

Hofman, R. ^{[1
]}

Segenhout, J. M. ^{[1
]}

Buytaert, J. A. N. ^{[2
]}

Dirckx, J. J. J. ^{[2
]}

Wit, H. P. ^{[1
]}

机构：

[1] Univ Groningen, Med Ctr, Dept Otorhinolaryngol, NL-9700 RB Groningen, Netherlands

[2] Univ Antwerp, Lab BioMed Phys, Dept Phys, B-2020 Antwerp, Belgium

来源：

EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY | 2008年 / 265卷 / 02期

关键词：

Utriculo-endolymphatic valve; Bast's valve; OPFOS; imaging; endolymphatic system; 3D-reconstruction;

D O I：

10.1007/s00405-007-0424-8

中图分类号：

R76 [耳鼻咽喉科学];

学科分类号：

100213 [耳鼻咽喉科学];

摘要：

The utriculo-endolymphatic valve was discovered by Bast in 1928. The function of Bast's valve is still unclear. By means of orthogonal-plane fluorescence optical sectioning (OPFOS) microscopy 3D-reconstructions of the valve and its surrounding region are depicted. The shape of the duct at the utricular side is that of a flattened funnel. In the direction of the endolymphatic duct and sac this funnel runs into a very narrow duct. The valve itself has a rigid 'arch-like' configuration. The opposing thin, one cell-layer thick, utricular membrane is highly compliant. We propose that opening and closure of the valve occurs through movement of the flexible base/utricular membrane away from and toward the relatively rigid valve lip.

引用

页码：153 / 157

页数：5

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