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
  • dilator of pupil
  • pupillary dilator muscle
  • dilator pupillae muscle
  • radial muscle of iris
  • iris dilator muscle
  • dilator muscle of pupil
  • dilator pupillae
  • musculus dilatator pupillae
has related synonym
  • radial muscle
  • dilator pupillae muscle
  • radiating fibers
  • pupillary muscle
  • musculus dilatator pupillae
  • pupil dilator muscle
  • pupil dilator
  • iris dilator
  • pupillary dilator
  • musculus dilator pupillae
id
  • UBERON:0001608