part of part of extends_fibers_into cranial nerve nucleus trochlear nerve oculomotor nuclear complex midbrain tegmentum pretectal region red nucleus substantia nigra pars reticulata parvocellular oculomotor nucleus ventral tegmental nucleus ventral tegmental area cuneiform nucleus trochlear nucleus http://upload.wikimedia.org/wikipedia/commons/c/c6/Drn.png http://upload.wikimedia.org/wikipedia/en/thumb/c/c6/Drn.png/200px-Drn.png EV:0100251 BAMS:4 MBA:115 TAO:0000450 SCTID:280163001 nucleus of trochlear nerve FMA:54518 neuronames:513 UBERON:0002722 nIV UMLS:C0152406 trochlear IV nucleus DHBA:12206 BIRNLEX:1488 BAMS:IV nucleus nervi trochlearis fourth cranial nerve nucleus BAMS:4N EMAPA:35886 Nucleus in the midbrain at the level of the inferior colliculus near the midline, containing the motor neurons giving rise to the trochlear nerve, innervating the contralateral superior oblique extraocular muscle of the eye (Brodal, Neurological Anatomy, 3rd ed, 1981, pg. 533). DMBA:16903 trochlear motor nucleus nucleus nervi trochlearis BM:MB-IV motor nucleus IV Wikipedia:Trochlear_nucleus HBA:9063 ZFA:0000450 MA:0001075 substantia nigra pars lateralis central gray substance of midbrain brainstem nucleus nucleus of midbrain tegmentum midbrain nucleus