loading...| Preferred Name | lens | |
| Synonyms |
crystalline lens ocular lens lenses lens crystallina camera-type eye lens lens eye lens |
|
| Definitions |
A transparent and refractive lens located posterior to the iris. The lens of camera-type eye refracts light to be focused on the retina. The lens is avascular and nourished by diffusion from the aqueous and vitreous humors. |
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| ID |
http://purl.obolibrary.org/obo/UBERON_0000965 |
|
| comment |
The lens is avascular and nourished by diffusion from the aqueous and vitreous humors. |
|
| altLabel |
crystalline lens ocular lens lenses lens crystallina camera-type eye lens lens eye lens |
|
| ccf_is_provisional |
false |
|
| ccf_part_of | ||
| ccf_pref_label |
lens |
|
| definition |
A transparent and refractive lens located posterior to the iris. The lens of camera-type eye refracts light to be focused on the retina. |
|
| has exact synonym |
lens crystallina camera-type eye lens lens eye lens |
|
| has related synonym |
crystalline lens ocular lens lenses |
|
| has_obo_namespace |
uberon |
|
| 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:0000965 |
|
| in_subset |
http://purl.obolibrary.org/obo/uberon/core#human_reference_atlas http://purl.obolibrary.org/obo/uberon/core#vertebrate_core |
|
| isDefinedBy | ||
| label |
lens of camera-type eye |
|
| notation |
UBERON:0000965 |
|
| part_of | ||
| prefLabel |
lens |
|
| taxon_notes |
This class excludes compound eye corneal lenses. |
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| treeView | ||
| xRef |
CALOHA:TS-0545 MESH:D007908 UMLS:C0023317 EMAPA:17838 EV:0100343 SCTID:181169005 TAO:0000035 MA:0000275 BTO:0000723 RETIRED_EHDAA2:0000975 EHDAA:9057 MAT:0000141 NCIT:C12743 MIAA:0000141 Wikipedia:Lens_(anatomy) AAO:0010348 FMA:58241 ZFA:0000035 VHOG:0000169 XAO:0000008 |
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| mutually spatially disjoint with | ||
| subClassOf |