Phylogenic Aspects of the Amphibian Dual Olfactory System
نویسندگان
چکیده
منابع مشابه
Phylogenic Studies on the Olfactory System in Vertebrates
The olfactory receptor organs and their primary centers are classified into several types. The receptor organs are divided into fish-type olfactory epithelium (OE), mammal-type OE, middle chamber epithelium (MCE), lower chamber epithelium (LCE), recess epithelium, septal olfactory organ of Masera (SO), mammal-type vomeronasal organ (VNO) and snake-type VNO. The fish-type OE is observed in flatf...
متن کاملPhylogenic outline of the olfactory system in vertebrates.
Phylogenic outline of the vertebrate olfactory system is summarized in the present review. In the fish and the birds, the olfactory system consists only of the olfactory epithelium (OE) and the olfactory bulb (B). In the amphibians, reptiles and mammals, the olfactory system is subdivided into the main olfactory and the vomeronasal olfactory systems, and the former consists of the OE and the ma...
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Chemical communication is widespread in amphibians, but if compared to later diverging tetrapods the available functional data is limited. The existing information on the vomeronasal system of anurans is particularly sparse. Amphibians represent a transitional stage in the evolution of the olfactory system. Most species have anatomically separated main and vomeronasal systems, but recent studie...
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چکیده ندارد.
15 صفحه اولImportant Clinical Aspects of Amphibian Physiology
THERMAL HOMEOSTASIS Amphibians are poikilothermic ectotherms. Their core body temperatures are determined by ambient environmental temperatures, and an amphibian thermoregulates by moving through the mosaic of environmental temperatures to find those appropriate for its current physiological needs. The preferred operating temperature zones (POTZ) vary tremendously between species, between geogr...
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ژورنال
عنوان ژورنال: Journal of Veterinary Medical Science
سال: 2008
ISSN: 0916-7250,1347-7439
DOI: 10.1292/jvms.70.1