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Brain

Definition: The part of the central nervous system contained within the cranium, comprising the prosencephalon, mesencephalon, and rhombencephalon. It is derived from the anterior part of the embryonic neural tube.
Notes: GEN; /blood supply: consider also CEREBROVASCULAR CIRCULATION; CEREBRAL ARTERIES; CEREBRAL VEINS; CRANIAL SINUSES; /cytol: do not routinely convert to NEURONS; /drug eff: consider terms in D14 & D15; /surg: consider also CEREBRAL DECORTICATION & PSYCHOSUR

Brain Categories.
Brain Stem - The part of the brain that connects the cerebral hemispheres with the spinal cord. It consists of the MESENCEPHALON, PONS, and MEDULLA OBLONGATA.
Cerebral Ventricles
Limbic System - A set of forebrain structures common to all mammals that is defined functionally and anatomically. It is implicated in the higher integration of visceral, olfactory, and somatic information as well as homeostatic responses including fundamental survival behaviors (feeding, mating, emotion). For most authors, it includes the AMYGDALA, EPITHALAMUS, GYRUS CINGULI, hippocampal formation (see HIPPOCAMPUS), HYPOTHALAMUS, PARAHIPPOCAMPAL GYRUS, SEPTAL NUCLEI, anterior nuclear group of thalamus, and portions of the basal ganglia. (Parent, Carpenter's Human Neuroanatomy, 9th ed, p744; NeuroNames, http://rprcsgi.rprc.washington.edu/neuronames/index.html (September 2, 1998)).
Prosencephalon - The part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube and consisting of the DIENCEPHALON and TELENCEPHALON.

Brain Definitions and Terms

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