Document Detail

Vagal innervation of the air sacs in a songbird, Taenopygia guttata.
MedLine Citation:
PMID:  15061754     Owner:  NLM     Status:  MEDLINE    
The air sacs of birds are thin-walled chambers connected to the lung that act as bellows in the ventilatory mechanism. Physiological evidence exists to suggest that they may contain receptors that are innervated by the vagus nerve, but no morphological study has examined the vagal innervation of these putative structures. To do this, we injected the cervical vagus nerve with choleragenoid and examined the innervation of the air sacs using light and confocal microscopy. We identified vagally innervated structures in the air sac wall that resemble the neuroepithelial bodies (NEBs) described in the airways of many vertebrates. Although NEBs have been proposed to have a dual chemoreceptive and mechanoreceptive role, their specific function in the air sacs of birds remains unclear.
M Fabiana Kubke; Jacqueline M Ross; J Martin Wild
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of anatomy     Volume:  204     ISSN:  0021-8782     ISO Abbreviation:  J. Anat.     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-04-05     Completed Date:  2004-06-28     Revised Date:  2013-06-09    
Medline Journal Info:
Nlm Unique ID:  0137162     Medline TA:  J Anat     Country:  England    
Other Details:
Languages:  eng     Pagination:  283-92     Citation Subset:  IM    
Department of Anatomy with Radiology, Faculty of Medical and Health Sciences, The University of Auckland, New Zealand.
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MeSH Terms
Air Sacs / innervation*
Immunohistochemistry / methods
Microscopy, Confocal
Songbirds / anatomy & histology*
Vagus Nerve / anatomy & histology*
Grant Support

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