The 3d cranial nerve. The
oculomotor nerve sends motor fibers to the levator
muscles of the eyelid and to the superior rectus, inferior rectus, and inferior oblique
muscles of the
eye. It also sends parasympathetic efferents (via the ciliary ganglion) to the
muscles controlling pupillary
constriction and accommodation. The motor fibers originate in the oculomotor nuclei of the midbrain.