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Experimental Factor Ontology
Last uploaded:
January 16, 2025
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| Id | http://purl.obolibrary.org/obo/UBERON_0001783
http://purl.obolibrary.org/obo/UBERON_0001783
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|---|---|
| Preferred Name | optic disc |
| Definitions |
The optic disc or optic nerve head is the location where ganglion cell axons exit the eye to form the optic nerve. There are no light sensitive rods or cones to respond to a light stimulus at this point. This causes a break in the visual field called 'the blind spot' or the 'physiological blind spot'. The optic nerve head in a normal human eye carries from 1 to 1.2 million neurons from the eye towards the brain. [WP,unvetted].
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| Synonyms |
optic nerve head
optic papilla
physiologic blind spot of mariotte
optic nerve disc
physiologic blind spot
optic disk
|
| Type | http://www.w3.org/2002/07/owl#Class |
All Properties
| definition | The optic disc or optic nerve head is the location where ganglion cell axons exit the eye to form the optic nerve. There are no light sensitive rods or cones to respond to a light stimulus at this point. This causes a break in the visual field called 'the blind spot' or the 'physiological blind spot'. The optic nerve head in a normal human eye carries from 1 to 1.2 million neurons from the eye towards the brain. [WP,unvetted]. |
|---|---|
| preferred label |
optic disc
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| label |
optic disc
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| prefLabel |
optic disc
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| database_cross_reference |
CALOHA:TS-2153
MESH:D009898
EMAPA:18238
EHDAA2:0001307
UMLS:C0029127
VHOG:0000551
Wikipedia:Optic_disc
EFO:0001974
NCIT:C12760
SCTID:362518006
EHDAA:9077
FMA:58634
MA:0000278
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| notation |
UBERON:0001783
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| in_subset |
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| has_related_synonym |
optic nerve head
optic papilla
physiologic blind spot of mariotte
optic nerve disc
physiologic blind spot
optic disk
See more
See less
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| id |
UBERON:0001783
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| has_obo_namespace |
uberon
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| part_of | |
| depiction | |
| external_definition |
The small blind spot on the surface of the retina. It is the point where the fibers of the retina leave the eye and become part of the optic nerve. [TFD][VHOG]
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| homology_notes |
(...) we reach the inescapable conclusion that the last common ancestor of jawless and jawed vertebrates already possessed an eye that was comparable to that of extant lampreys and gnathostomes. Accordingly, a vertebrate camera-like eye must have been present by the time that lampreys and gnathostomes diverged, around 500 Mya (reference 1); Although the eye varies greatly in adaptative details among vertebrates, its basic structure is the same in all. The human eye is representative of the design typical for a tetrapod (reference 2).[well established][VHOG]
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| RO_0002175 | |
| subClassOf | |
| type | |
| has_exact_synonym |
optic disk
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