loading...| Preferred Name |
sphincter pupillae |
|
| Synonyms |
M. sphincter pupillae musculus sphincter pupillae iris sphincter muscle sphincter muscle of pupil iris constrictor pupillary sphincter pupillary constrictor muscle iris constrictor muscle sphincter pupillae muscle spincter pupillae m. sphincter pupillae sphincter pupillae pupillary sphincter muscle circular fibers iris sphincter constrictor pupillae |
|
| Definitions |
A sphincter muscle that is part of the iris. |
|
| ID |
http://purl.obolibrary.org/obo/UBERON_0001607 |
|
| database_cross_reference |
Wikipedia:Iris_sphincter_muscle SCTID:280889004 BTO:0000656 NCIT:C33586 EMAPA:35788 UMLS:C0229189 FMA:49157 MA:0001289 |
|
| definition |
A sphincter muscle that is part of the iris. |
|
| depiction |
http://upload.wikimedia.org/wikipedia/commons/2/2f/Gray878.png |
|
| develops_from | ||
| function_notes |
constricts iris |
|
| has muscle antagonist | ||
| has muscle insertion | ||
| has muscle origin | ||
| has_exact_synonym |
M. sphincter pupillae musculus sphincter pupillae iris sphincter muscle sphincter muscle of pupil |
|
| has_obo_namespace |
uberon |
|
| has_related_synonym |
iris constrictor pupillary sphincter pupillary constrictor muscle iris constrictor muscle sphincter pupillae muscle spincter pupillae m. sphincter pupillae sphincter pupillae pupillary sphincter muscle circular fibers iris sphincter constrictor pupillae |
|
| id |
UBERON:0001607 |
|
| in_subset | ||
| label |
sphincter pupillae |
|
| notation |
UBERON:0001607 |
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| part_of | ||
| prefLabel |
sphincter pupillae |
|
| taxon_notes |
WP says: It is found in vertebrates and some cephalopods; this class refers to the vertebrate structure In humans, it functions to constrict the pupil in bright light or during accommodation. Its dimensions are about 0.75 mm wide by 0.15 mm thick. It is controlled by parasympathetic fibers that originate from the Edinger-Westphal nucleus, travel along the oculomotor nerve (CN III), synapse in the ciliary ganglion, and then enter the eye via the short ciliary nerves. Initially, all the myocytes are of the smooth muscle type, but much later in life, so that ultimately most cells are of the striated muscle type. [WP,unvetted] |
|
| treeView |
http://purl.obolibrary.org/obo/UBERON_0001769 |
|
| subClassOf |
http://purl.obolibrary.org/obo/UBERON_0004234 http://purl.obolibrary.org/obo/UBERON_0007521 |