brain-stem
English Thesaurus
1. the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus (noun.body)
| hypernym | : | neural structure, |
| definition | : | a structure that is part of the nervous system (noun.body) |
| part holonym | : | bulb, medulla, medulla oblongata, |
| definition | : | lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata) (noun.body) |
| part holonym | : | pons, pons varolii, |
| definition | : | a band of nerve fibers linking the medulla oblongata and the cerebellum with the midbrain (noun.body) |
| part holonym | : | reticular formation, rf, |
| definition | : | a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone (noun.body) |
| part meronym | : | brain, encephalon, |
| definition | : | that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord (noun.body) |
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