Document Detail

The inner ear macular sensory epithelia of the Daubenton's bat.
MedLine Citation:
PMID:  11559899     Owner:  NLM     Status:  MEDLINE    
The inner ear macular sensory epithelia of the Daubenton's bat were examined quantitatively to estimate the area and total number of hair cells. Ultrastructural examination of the sensory epithelium reveals two main types of hair cells: the chalice-innervated hair cell and the bouton-innervated hair cell. The existence of an intermediate type, with a nerve ending covering the lateral side of the hair cell, indicates that the chalice-innervated hair cells are derived from bouton-innervated hair cells. Thus, at least a part of the bouton-innervated hair cells forms a transitional stage. A number of immature as well as apoptotic hair cells were observed. It is suggested that a continuous production of new hair cells takes place in mature individuals, probably based on transdifferentiation of supporting cells.
M Kirkegaard; J M Jørgensen
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of comparative neurology     Volume:  438     ISSN:  0021-9967     ISO Abbreviation:  J. Comp. Neurol.     Publication Date:  2001 Oct 
Date Detail:
Created Date:  2001-09-17     Completed Date:  2001-10-25     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0406041     Medline TA:  J Comp Neurol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  433-44     Citation Subset:  IM    
Copyright Information:
Copyright 2001 Wiley-Liss, Inc.
Department of Zoophysiology, University of Aarhus, DK-8000 Aarhus C, Denmark.
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MeSH Terms
Acoustic Maculae / growth & development,  physiology,  ultrastructure*
Apoptosis / physiology
Chiroptera / anatomy & histology*,  growth & development,  physiology
Epithelium / growth & development,  physiology,  ultrastructure*
Hair Cells, Vestibular / growth & development,  physiology,  ultrastructure*
Microscopy, Electron
Microscopy, Electron, Scanning
Neurons, Afferent / physiology,  ultrastructure*
Postural Balance / physiology*
Presynaptic Terminals / physiology,  ultrastructure*
Shrews / anatomy & histology,  growth & development,  physiology

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