Document Detail

Searching for the vomeronasal organ of adult humans: preliminary findings on location, structure, and size.
MedLine Citation:
PMID:  9712196     Owner:  NLM     Status:  MEDLINE    
The adult human vomeronasal organ (VNO) has been the focus of numerous recent investigations, yet its developmental continuity from the human fetal VNO is poorly understood. The present study compared new data on the adult human "VNO" with previous findings on the fetal human VNO. Nasal septa were removed from twelve adult human cadavers and each specimen was histologically sectioned. Coronal sections were stained with hematoxylin-eosin and periodic acid-Schiff-hematoxylin. The sections were examined by light microscopy for the presence of VNOs and the anterior paraseptal cartilages (PC). VNOs were quantified using a computer reconstruction technique to obtain VNO length, volume, and vomeronasal epithelium (VNE) volume. Histologically, VNOs and PCs were identified in eleven specimens. VNOs had ciliated, pseudostratified columnar epithelium with goblet cells. Variations (e.g., multiple communications to the nasal cavity) were observed in several specimens. Quantification was possible for 16 right or left VNOs. Right or left VNOs ranged from 3.5 to 11.8 mm in length, from 1.8 to 33.8 x 10(-4)cc in volume, and from 2.7 to 18.1 x 10(-4)cc in VNE volume. Results indicated that the adult human VNO was similar in VNE morphology, lumen shape, and spatial relationships when compared to human fetal VNOs. By comparison with previous fetal VNO measures, mean VNO length, volume, and VNE volume were larger in adult humans. These results support previous suggestions that postnatal VNO growth occurs. Findings on location and spatial relationships of the adult VNO were similar to those seen in human fetuses, but critical questions remain regarding the ontogeny of the vomeronasal nerves and VNE.
T D Smith; M I Siegel; A M Burrows; M P Mooney; A R Burdi; P A Fabrizio; F R Clemente
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Microscopy research and technique     Volume:  41     ISSN:  1059-910X     ISO Abbreviation:  Microsc. Res. Tech.     Publication Date:  1998 Jun 
Date Detail:
Created Date:  1998-10-07     Completed Date:  1998-10-07     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9203012     Medline TA:  Microsc Res Tech     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  483-91     Citation Subset:  IM    
School of Physical Therapy, Slippery Rock University, Pennsylvania 16057, USA.
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MeSH Terms
Aged, 80 and over
Middle Aged
Vomeronasal Organ / anatomy & histology*,  embryology

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