Assertion: ganglion's neuron | /r/CapableOf | supply the pupillary sphincter muscle
Facets:
Source sentences:
text: These neurons supply the pupillary sphincter muscle, which constricts the pupil, and the ciliary muscle which contracts to make the lens more convex.
text: The ciliary ganglion contains postganglionic parasympathetic neurons that supply the ciliary muscle and the pupillary sphincter muscle.