Document Detail


Does the endolymph pass through the base of the cupula?
MedLine Citation:
PMID:  11669123     Owner:  NASA     Status:  MEDLINE    
Abstract/OtherAbstract:
Whether the endolymph of the semicircular canal passes the cupular partition or not was examined using the lateral semicircular canal system of adult pigeons (Columba livia). By applying various pressures by means of injection of a dye solution through the membranous canal, it was found that the dye solution, was seen to pass the cupula even under very low pressures when the pressure was increased gradually. When pulled by a magnet, the ultrafine particles of the dextran magnetite contained in the injected fluid were found to pass through the subcupular space without evident increase of the ampullary pressure.
Authors:
H Jijiwa; N Watanabe; T Hattori; F Matuda; M Hashiba; Y Mizuno; M Shindo; S Watanabe
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta astronautica     Volume:  49     ISSN:  0094-5765     ISO Abbreviation:  Acta Astronaut     Publication Date:    2001 Aug-Nov
Date Detail:
Created Date:  2001-10-22     Completed Date:  2001-12-26     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9890631     Medline TA:  Acta Astronaut     Country:  England    
Other Details:
Languages:  eng     Pagination:  365-9     Citation Subset:  S    
Copyright Information:
c 2001. Elsevier Science Ltd. All rights reserved.
Affiliation:
Aichi Prefectural College of Nursing and Health, Nagoya 463-8502, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Coloring Agents / pharmacokinetics
Columbidae / anatomy & histology,  metabolism,  physiology*
Contrast Media / pharmacokinetics
Endolymph / physiology*
Evans Blue / pharmacokinetics
Iron / pharmacokinetics
Magnetics
Oxides / pharmacokinetics
Permeability
Pressure*
Semicircular Canals / anatomy & histology,  metabolism,  physiology*
Vestibule, Labyrinth / anatomy & histology,  physiology*
Chemical
Reg. No./Substance:
0/Coloring Agents; 0/Contrast Media; 0/Oxides; 0/carboxydextran-coated magnetic iron oxide particles; 314-13-6/Evans Blue; 7439-89-6/Iron

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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