part of part_of part of part_of has part has_part has part extends_fibers_into trigeminal nerve pontine tegmentum nuclear complex of neuraxis trigeminal nuclear complex BM:V CALOHA:TS-2077 DHBA:266441713 FMA:71248 HBA:9203 The sensory trigeminal nerve nuclei are the largest of the cranial nerve nuclei, and extend through the whole of the midbrain, pons and medulla. There is also a distinct trigeminal motor nucleus that is medial to the chief sensory nucleus[WP]. UBERON:0007641 UMLS:C0040999 in MA and FMA this is part of the pons / pontime tegmentum. We weaken this to overlaps to avoid inconsistency. In NIF this is a composite structure spanning multiple regions, which is more appropriate. nuclei trigemini trigeminal nuclei uberon