part_of part of part of contributes to morphology of composed primarily of existence ends during immediate transformation of neural cell organ fully formed stage multicellular organism brain NCIT:C12439 DHBA:10155 GAID:571 EMAPA:16894 BTO:0000142 MESH:D001921 EHDAA:6485 CALOHA:TS-0095 VHOG:0000157 EHDAA2:0000183 XAO:0000010 BAMS:Brain suprasegmental levels of nervous system Wikipedia:Brain FMA:50801 MBA:997 SCTID:258335003 EHDAA:2641 BAMS:Br synganglion galen:Brain TAO:0000008 MBA:8 BILA:0000135 EV:0100164 EFO:0000302 HBA:4005 MAT:0000098 PBA:3999 ABA:Brain ZFA:0000008 The brain is the center of the nervous system in all vertebrate, and most invertebrate, animals. Some primitive animals such as jellyfish and starfish have a decentralized nervous system without a brain, while sponges lack any nervous system at all. In vertebrates, the brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing, balance, taste, and smell[WP]. MIAA:0000098 AAO:0010478 UBERON:0000955 BIRNLEX:796 suprasegmental structures encephalon the brain MA:0000168 nervous system central nervous system ectoderm-derived structure future brain