- n.the enlarged extension upwards within the skull of the spinal cord, consisting of the medulla oblongata, the pons, and the midbrain. The pons and medulla are together known as the bulb, or bulbar area. Attached to the midbrain are the two cerebral hemispheres. See brain.
* * *brain·stem (brānґstem) the stalklike portion of the brain connecting the cerebral hemispheres with the spinal cord and comprising the mesencephalon, pons, and medulla oblongata; the diencephalon is considered part of the brainstem by some. Called also truncus encephalicus [TA]. Also written brain stem.
Medical dictionary. 2011.
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brainstem — [brān′stem΄] n. a stalklike structure at the base of the brain that connects the spinal cord with the cerebrum and includes the medulla oblongata, pons, and midbrain: also written brain stem … English World dictionary
brainstem — /brayn stem /, n. the portion of the brain that is continuous with the spinal cord and comprises the medulla oblongata, pons, midbrain, and parts of the hypothalamus, functioning in the control of reflexes and such essential internal mechanisms… … Universalium
brainstem — UK [ˈbreɪnˌstem] / US noun [countable] Word forms brainstem : singular brainstem plural brainstems medical the part of the brain above the spinal cord between the left and right halves of the brain … English dictionary
brainstem — n. (Anatomy) part of the lower brain that resembles a stem and connects the brain to the spinal cord … English contemporary dictionary
brainstem — noun Anatomy the central trunk of the mammalian brain, consisting of the medulla oblongata, pons, and midbrain … English new terms dictionary
brainstem — n. the enlarged extension upwards within the skull of the spinal cord, consisting of the medulla oblongata, the pons, and the midbrain. The pons and medulla are together known as the bulb, or bulbar area. Attached to the midbrain are the two… … The new mediacal dictionary
brainstem — brain′stem or brain′ stem n. anat. the portion of the brain that is continuous with the spinal cord and in mammals comprises the medulla oblongata and parts of the midbrain • Etymology: 1875–80 … From formal English to slang
brainstem — noun the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus • Syn: ↑brain stem, ↑brain stem • Hypernyms: ↑neural structure • Part Holonyms: ↑brain,… … Useful english dictionary
Brainstem auditory hallucinosis — A term used to denote a hallucinatory state characterized by * auditory hallucinations which are attributed to aberrant neurophysiological activity in the brainstem. The concept of brain stem auditory hallucinosis is analogous to that of *… … Dictionary of Hallucinations
Brainstem glioma — A brainstem glioma is a glioma tumor in the brainstem.External links* [http://www.emedicine.com/NEURO/topic40.htm Brainstem glioma information on Emedicine] … Wikipedia