Assertion: ganglion's axon | /r/CapableOf | widen of palpebral fissure
Facets:
Source sentences:
text: The postganglionic axons of the Superior cervical ganglion innervate the eye and lacrimal gland and cause vasoconstriction of the iris and sclera, pupillary dilation, widening of the palpebral fissure, and the reduced production of tears.