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Cell Culture Ontology
Last uploaded:
July 23, 2014
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| Id | http://purl.obolibrary.org/obo/UBERON_0002255
http://purl.obolibrary.org/obo/UBERON_0002255
|
|---|---|
| Preferred Name | vomeronasal organ |
| Definitions |
An organ thought to supplement the olfactory system in receiving pheromonic communication. The sensory part of the organ is in two long, thin sacs, situated on either side of the nasal septum at its base.
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| Synonyms |
organ of Jacobsen
VNO
organum vomeronasale
organon vomeronasale
Jacobson's organ
|
| Type | http://www.w3.org/2002/07/owl#Class |
All Properties
| definition | An organ thought to supplement the olfactory system in receiving pheromonic communication. The sensory part of the organ is in two long, thin sacs, situated on either side of the nasal septum at its base. |
|---|---|
| preferred label |
vomeronasal organ
|
| label |
vomeronasal organ
|
| prefLabel |
vomeronasal organ
|
| database_cross_reference |
EMAPA:17612
VHOG:0000665
EFO:0001934
XAO:0000272
Wikipedia:Vomeronasal_organ
SCTID:361346007
MESH:D019147
neuronames:1566
BTO:0002608
EHDAA2:0002211
AAO:0000997
EHDAA:7865
FMA:77280
GAID:354
MA:0000289
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| notation |
UBERON:0002255
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| in_subset | |
| has_related_synonym |
organ of Jacobsen
VNO
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| id |
UBERON:0002255
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| has_obo_namespace |
uberon
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| part_of | |
| depiction | |
| taxon_notes |
Generally formed only in tetrapods; lungfish have rudimentary VN organs; true VN organs are not normally found in recent fishes, birds, aquatic reptiles, aquatic mammals (Bertmar 1980). Humans: Its presence in many animals has been widely studied and the importance of the vomeronasal system to the role of reproduction and social behavior (through influence on anterior hypothalamus) has been shown in many studies. Its presence and functionality in humans was controversial, though most studies agree the organ regresses during fetal development. Many genes essential for VNO function in animals (such as TRPC2) are non-functional in humans (Liman ER. Use it or lose it: molecular evolution of sensory signaling in primates. Pflugers Arch. 2006;453(2):125-31.)
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| external_definition |
An organ thought to supplement the olfactory system in receiving pheromonic communication. The sensory part of the organ is in two long, thin sacs, situated on either side of the nasal septum at its base. [TFD][VHOG]
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| homology_notes |
(...) the vomeronasal organ is known only in some tetrapods. It is absent in most turtles, crocodiles, birds, some bats, and aquatic mammals. In amphibians, it is in a recessed area off the main nasal cavity. (...) In mammals possesing this organ, it is an isolated area of olfactory membrane within the nasal cavity that is usually connected to the mouth via the nasopalatine duct (reference 1); The opinions concerning the presence and functioning of the vomeronasal organ in humans are controversial. The vomeronasal cavities appear early in human foetuses. (...) Historical examination of the nasal septum revealed the presence of vomeronasal cavities in approximately 70% of adults. In contrast to the situation in other mammals, the organ is not supported by a rigid tube of bone or cartilage (reference 2); (...) the best evidence for the homology of the human VNO to that of other primates (and of mammals in general) is ontogenetic in nature, based on a common embryonic origin from a thickening (vomeronasal primordium) on the medial aspect of each olfactory pit (reference 3); (...) suggesting that lungfish possess a region homologous to the accessory olfactory bulb of tetrapods. Based on these results, it seems appropriate to refer to the recess epithelium as a primordium of the vomeronasal organ (reference 4). [debated][VHOG]
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| subClassOf | |
| type | |
| has_exact_synonym |
organum vomeronasale
organon vomeronasale
Jacobson's organ
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