The central circular aperture of the iris through which light rays enter the eye. [ MP : 0001317 https://www.worldcat.org/search?q=bn%3A0-683-40008-8 ]
This is just here as a test because I lose it
Term information
database
cross reference
- ZFA:0001283
- MESH:D011680
- GAID:918
- NCIT:C33429
- XAO:0000283
- MA:0001292
- FMA:58252
- null:http://www.snomedbrowser.com/Codes/Details/35146001
- null:http://linkedlifedata.com/resource/umls/id/C0034121
- VHOG:0000116
- OpenCyc:Mx4rvViBr5wpEbGdrcN5Y29ycA
- null:http://en.wikipedia.org/wiki/Pupil
- AAO:0010351
- TAO:0001283
- UMLS:C0034121 (ncithesaurus:Pupil)
Subsets
uberon_slim, pheno_slim, vertebrate_core
plural term
pupils
[
ZFA
:
0001283
]
definition
- The central circular aperture of the iris through which light rays enter the eye.
depicted by
- https://upload.wikimedia.org/wikipedia/commons/6/65/Eye_iris.jpg
external definition
- The circular orifice in the centre of the iris, through which light enters into the eye. [Dorian_AF, Elsevier's_encyclopaedic_dictionary_of_medicine, Part_B:_Anatomy_(1988)_Amsterdam_etc.:_Elsevier][VHOG]
has obo namespace
- uberon
has related synonym
- pupils
homology notes
- The eye of the adult lamprey is remarkably similar to our own, and it possesses numerous features (including the expression of opsin genes) that are very similar to those of the eyes of jawed vertebrates. The lamprey's camera-like eye has a lens, an iris and extra-ocular muscles (five of them, unlike the eyes of jawed vertebrates, which have six), although it lacks intra-ocular muscles. Its retina also has a structure very similar to that of the retinas of other vertebrates, with three nuclear layers comprised of the cell bodies of photoreceptors and bipolar, horizontal, amacrine and ganglion cells. The southern hemisphere lamprey, Geotria australis, possesses five morphological classes of retinal photoreceptor and five classes of opsin, each of which is closely related to the opsins of jawed vertebrates. Given these similarities, 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.[well established][VHOG]
id
- UBERON:0001771
Term relations
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