loading...| Preferred Name |
ciliary body |
| Synonyms |
corpus ciliare ciliary bodies ocular ciliary body anterior uvea |
| Definitions |
The thickened portion of the vascular tunic, which lies between the choroid and the iris, composed of ciliary muscle and ciliary processes. |
| ID |
http://purl.obolibrary.org/obo/UBERON_0001775 |
| contributes to morphology of | |
| database_cross_reference |
Wikipedia:Ciliary_body MA:0000264 EMAPA:19065 FMA:58295 UMLS:C0008779 MESH:D002924 XAO:0000186 VHOG:0000102 AAO:0010341 neuronames:1571 NCIT:C12345 EV:0100346 CALOHA:TS-0694 GAID:916 BTO:0000260 SCTID:263340007 |
| definition |
The thickened portion of the vascular tunic, which lies between the choroid and the iris, composed of ciliary muscle and ciliary processes. |
| depicted_by |
http://upload.wikimedia.org/wikipedia/commons/1/1e/Schematic_diagram_of_the_human_eye_en.svg |
| develops_from | |
| has part | |
| has_exact_synonym |
ocular ciliary body |
| has_obo_namespace |
uberon |
| has_related_synonym |
corpus ciliare ciliary bodies anterior uvea |
| id |
UBERON:0001775 |
| in_subset |
http://purl.obolibrary.org/obo/uberon/core#uberon_slim http://purl.obolibrary.org/obo/uberon/core#human_reference_atlas |
| label |
ciliary body |
| notation |
UBERON:0001775 |
| part_of | |
| prefLabel |
ciliary body |
| RO_0002175 | |
| treeView | |
| UBPROP_0000003 |
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] |
| subClassOf |