The nasal cavity of the sheep and its olfactory sensory epithelium

Arthur William Barrios, Pablo Sanchez Quinteiro, Ignacio Salazar

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6 Scopus citations


© 2014 Wiley Periodicals, Inc. Macro and microdissection methods, conventional histology and immunohistochemical procedures were used to investigate the nasal cavity and turbinate complex in fetal and adult sheep, with special attention to the ethmoturbinates, the vestibular mucosa, and the septal mucosa posterior to the vomeronasal organ. The ectoturbinates, which are variable in number and size, emerge and develop later than the endoturbinates. The olfactory sensory epithelium is composed of basal cells, neurons, and sustentacular cells organized in strata, but numerous different types are distinguishable on the basis of their thickness and other properties; all variants are present on the more developed turbinates, endoturbinates II and III. Mature neurons and olfactory nerve bundles express olfactory marker protein. We found no structure with the characteristics that in mouse define the septal organ or the ganglion of Grüneberg. Our results thus suggest that in sheep olfactory sensory neurons are exclusively concentrated in the main olfactory epithelium and (to a lesser extent) in the vomeronasal organ. Microsc. Res. Tech. 77:1052-1059, 2014.
Original languageAmerican English
Pages (from-to)1052-1059
Number of pages8
JournalMicroscopy Research and Technique
StatePublished - 1 Jan 2014
Externally publishedYes

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