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 ]

This is just here as a test because I lose it

Term information

Subsets

uberon_slim

latin term
musculus dilatator pupillae [ FMA:TA FMA:49158 ]

definition

A smooth muscle of the eye, running radially in the iris that functions as a dilator. [WP,unvetted].

depicted by

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

function notes

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

has exact synonym

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

has related synonym

musculus dilator pupillae

dilator pupillae muscle

pupillary muscle

iris dilator

pupil dilator muscle

pupillary dilator

radiating fibers

musculus dilatator pupillae

pupil dilator

radial muscle

id

UBERON:0001608