| / English Dictionary |
BRAIN STEM
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
Synonyms:
brain-stem; brain stem; brainstem
Classified under:
Hypernyms ("brain stem" is a kind of...):
neural structure (a structure that is part of the nervous system)
Meronyms (parts of "brain stem"):
bulb; medulla; medulla oblongata (lower or hindmost part of the brain; continuous with spinal cord; ('bulb' is an old term for medulla oblongata))
pons; pons Varolii (a band of nerve fibers linking the medulla oblongata and the cerebellum with the midbrain)
reticular formation; RF (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)
Holonyms ("brain stem" is a part of...):
brain; encephalon (that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord)
Context examples:
Clinical symptoms include neuro-ophthalmologic dysfunction, changes in mental status, dysfunction of the brain stem, and hypothalamic-based endocrine abnormalities. —2004
(Pineal Region Neoplasm, NCI Thesaurus)
A malignant neoplasm that has spread from its original site to the brain stem.
(Metastatic Malignant Neoplasm to the Brain Stem, NCI Thesaurus)
Flavoxate binds and inhibits muscarinic receptors, thereby suppressing the micturition reflex and increases urinary bladder capacity by modifying the micturition center in the brain stem.
(Flavoxate, NCI Thesaurus)
It forms in the brain stem.
(Diffuse intrinsic pontine glioma, NCI Dictionary)
A neuroglial tumor that arises from the middle portion of the brain stem.
(Diffuse intrinsic pontine glioma, NCI Thesaurus)
A tumor in the part of the brain that connects to the spinal cord (the brain stem).
(Brain Stem Neoplasm, NCI Dictionary)
Diseases of any component of the brain (including the cerebral hemispheres, diencephalon, brain stem, and cerebellum) or the spinal cord.
(Central Nervous System Disorder, NLM, Medical Subject Headings)
A benign or malignant neoplasm that affects the brain stem.
(Brain Stem Neoplasm, NCI Thesaurus)
A rare genetic brain malformation characterized by displacement of the brain stem and cerebellum through the foramen magnum.
(Arnold-Chiari Malformation, NCI Thesaurus)
Also called auditory brain stem response test, BAER test, and brain stem auditory evoked response test.
(ABR test, NCI Dictionary)
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