cranial nerve nucleus oculomotor nuclear complex 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 BAMS:4N TAO:0000450 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). EMAPA:35886 DMBA:16903 SCTID:280163001 trochlear motor nucleus uberon nucleus of trochlear nerve FMA:54518 nucleus nervi trochlearis neuronames:513 UBERON:0002722 BM:MB-IV nIV UMLS:C0152406 trochlear IV nucleus DHBA:12206 motor nucleus IV Wikipedia:Trochlear_nucleus BIRNLEX:1488 BAMS:IV HBA:9063 ZFA:0000450 MA:0001075 nucleus nervi trochlearis fourth cranial nerve nucleus substantia nigra pars lateralis central gray substance of midbrain