2 articles
Cranial nerves
Cranial nerves: twelve paired nerves (I–XII, plus controversial cranial nerve zero) emerging from the brain and brainstem, innervating head and neck structures, with nuclei organized in sensory and motor columns in the brainstem.
Edinger–Westphal nucleus
The Edinger–Westphal nucleus (E-W nucleus), described by Edinger in 1885 and Westphal in 1887, is a midbrain cell group whose preganglionic neurons control pupil constriction and lens accommodation.