anatomical entity brain def: "The supra-esophageal ganglion of the central nervous system, composed of three primitive ganglia known as protocerebrum, deutocerebrum and tritocerebrum. In the context of Drosophila refers to the preoral ganglionic mass of the central nervous system containing the ventral ganglia. // Organ component of neuraxis that has as its parts gray matter and white matter that surround the cerebral ventricular system; Examples: There is only one brain. // Organ that is a component of the central nervous system and is responsible for the coordination and control of bodily activities and the interpretation of information from the senses. It appears when the neural tube segregates in forebrain, midbrain, and hindbrain at NF stage 22. The general pattern of the brain has been mainly established at NF stage 28. Yolky material is consumed and the fibre tracts and later the commissures develop. In general all of its parts are well developed at NF stage 53 and later development consists mainly of growth and some further cytological differentiation. In the period of metamorphosis only topographical changes take place." [FB:gg, ISBN:0815318960, ISBN:3110148986, OMD:brain, Wikipedia:Brain] comment: This class was created automatically from a combination of ontologies nervous system