Term Name: brain
Synonyms: encephalon, suprasegmental levels of nervous system, suprasegmental structures, synganglion, the brain
Definition: 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].
Ontology: Cell Ontology [UBERON:0000955]

Relationships
is part of: central nervous system multicellular organism
has parts: aggregate regional part of brain arthropod optic lobe brain blood vessel brain commissure brain dura mater brain endothelium brain gray matter brain macroglial cell brain marginal zone brain meninx brain microvascular endothelial cell brain pericyte brain pia mater brain ventricle/choroid plexus brain white matter calcified structure of brain cephalopod optic lobe cerebral hemisphere cerebral subcortex composite part spanning multiple base regional parts of brain fasciculus of brain forebrain-midbrain boundary hindbrain left auditory cortex left cerebral hemisphere midbrain-hindbrain boundary mushroom body nucleus of brain pars intercerebralis regional part of brain right auditory cortex right cerebral hemisphere subarachnoid space sulcus of brain supraesophageal ganglion tract of brain vasculature of brain venous system of brain ventricular system of brain ventricular zone
is a type of: ectoderm-derived structure organ
has subtype: adult brain embryonic brain insect embryonic/larval brain neural tube derived brain
immediate_transformation_of: future brain