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dilatator pupillae

^ http://purl.obolibrary.org/obo/UBERON_0001608

A smooth muscle of the eye, running radially in the iris that functions as a dilator. [WP,unvetted]. [ http://en.wikipedia.org/wiki/Iris_dilator_muscle ]

Synonyms: radial muscle of iris, pupillary dilator muscle, dilator pupillae muscle, dilator pupillae, musculus dilatator pupillae, iris dilator muscle, dilator of pupil, dilator muscle of pupil

Term info

database cross reference
Subsets

uberon_slim

UBPROP 0000009

It is innervated by the sympathetic system, which acts by releasing noradrenaline, which acts on alpha1-receptors. Thus, when presented with a threatening stimuli that activates the fight-or-flight response, this innervation dilates the iris, thus temporarily letting more light reach the retina

depicted by

http://upload.wikimedia.org/wikipedia/commons/2/2f/Gray878.png

has related synonym

musculus dilator pupillae, dilator pupillae muscle, pupillary muscle, iris dilator, pupil dilator muscle, pupillary dilator, radiating fibers, musculus dilatator pupillae, radial muscle, pupil dilator

id

UBERON:0001608

prefLabel

dilatator pupillae, Dilatator pupillae