A smooth muscle of the eye, running radially in the iris that functions as a dilator. [WP,unvetted]. [ Wikipedia:Iris_dilator_muscle ]
术语信息
- SCTID:280890008
- MA:0001288
- BTO:0001371
- NCIT:C32463
- EMAPA:35286
- UMLS:C0229190 (ncithesaurus:Dilator_Pupillae_Muscle)
- FMA:49158
- Wikipedia:Iris_dilator_muscle
uberon_slim
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
A smooth muscle of the eye, running radially in the iris that functions as a dilator. [WP,unvetted].
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
musculus dilator pupillae
pupillary muscle
dilator pupillae muscle
iris dilator
pupil dilator muscle
pupillary dilator
radiating fibers
musculus dilatator pupillae
radial muscle
pupil dilator