Editing Tears (section)

=== Neurology ===
The [[trigeminal]] V<sub>1</sub> (fifth cranial) nerve bears the sensory pathway of the tear reflexes. When the trigeminal nerve is cut, tears from reflexes will stop, while emotional tears will not. The great (superficial) petrosal nerve from cranial nerve VII provides autonomic innervation to the lacrimal gland.<ref>{{cite journal |title=Neural Regulation of Lacrimal Gland Secretory Processes: Relevance in Dry Eye Diseases |pmc=3652637 |year=2009 |last1=Dartt |first1=D. A. |journal=Progress in Retinal and Eye Research |volume=28 |issue=3 |pages=155–177 |pmid=19376264 |doi=10.1016/j.preteyeres.2009.04.003 }}</ref> It is responsible for the production of much of the aqueous portion of the tear film.