part_of part of part of Homo sapiens anatomical structure brain nervous system midbrain diencephalon hindbrain http://upload.wikimedia.org/wikipedia/commons/5/54/EmbryonicBrain.svg Posterior part of the brain consisting of the cerebellum and medulla oblongata.[AAO] BAMS:HB TAO:0000029 EHDAA2:0000746 neuronames:540 VHOG:0000070 XAO:0000015 UBERON:0002028 AAO:0010150 MESH:D012249 EHDAA:3514 The most posterior of the three principal regions of the brain. In mammals and birds the hindbrain is divided into a rostral metencephalon and a caudal myelencephalon. In zebrafish, with the exception of the cerebellum, the ventral remainder of the metencephalon can be separated only arbitrarily from the more caudal myelencephalic portion of the medulla oblongata (From: Neuroanatomy of the Zebrafish Brain)[ZFA]. Organ component of neuraxis that has as its parts the pons, cerebellum and medulla oblongata[FMA]. in MA, brainstem and hindbrain and part-of siblings under brain, consistent with FMA and NIF. See also notes for cerebellum. We weaken the relation in ABA to overlaps relationship loss: develops_from hindbrain neural tube (TAO:0007043)[TAO] MAT:0000107 rhombencephalon EMAPA:16916 MBA:1065 BIRNLEX:942 BTO:0000672 DHBA:10653 UMLS:C1522180 UMLS:C0035507 ZFA:0000029 SCTID:303456008 DMBA:16808 CALOHA:TS-0457 EFO:0000923 MIAA:0000107 Fine structural, computerized three-dimensional (3D) mapping of cell connectivity in the amphioxus nervous system and comparative molecular genetic studies of amphioxus and tunicates have provided recent insights into the phylogenetic origin of the vertebrate nervous system. The results suggest that several of the genetic mechanisms for establishing and patterning the vertebrate nervous system already operated in the ancestral chordate and that the nerve cord of the proximate invertebrate ancestor of the vertebrates included a diencephalon, midbrain, hindbrain, and spinal cord.[well established][VHOG] EHDAA:6487 Wikipedia:Rhombencephalon The most posterior of the three principal regions of the brain, forming the rhombencephalon and all or most of the metencephalon. Kimmel et al, 1995.[TAO] MA:0000195 FMA:67687 NCIT:C40336 rhombencephalic