Hongyuan WANG,Zhouxian SANG and Gang LIANG.Histological Architecture of the Nasal Region in Rana chensinensis[J].Asian Herpetological Research(AHR),2013,4(1):68-75.[doi:10.3724/SP.J.1245.2013.00068]
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Histological Architecture of the Nasal Region in Rana chensinensis
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2013 VoI.4 No.1
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Original Article
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Histological Architecture of the Nasal Region in Rana chensinensis
Hongyuan WANG Zhouxian SANG and Gang LIANG*
College of Life Science, Shaanxi Normal University, Xi’an 710062, Shaanxi, China
frog Rana chensinensis olfactory organ vomeronasal organ skeletal morphology
The nasal region of Rana chensinensis is divided into the nasal capsules and nasal cavities. In this study, we investigated the adult histological structure of the nasal capsules and nasal cavities in the frog R. chensinensis under the microscope. We found that an eminentia olfactoria is present in this frog and the presence of the eminentia olfactoria may be connected to a terrestrial life style. The double staining method using alcian blue and alizarin red showed that the septomaxilla, the most important bone associated with the olfactory capsules, is an intramembranous bone in R. chensinensis. The opening of the nasolacrimal duct showed a close proximity to the apertura nasalis externa. The pre-sence of the nasolacrimal duct in the olfactory region may be an adaptation to a terrestrial environment. The function of the vomeronasal and olfactory organs is discussed in the paper.


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