brain stem


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Related to brain stem: brain stem reflexes

brain·stem

or brain stem  (brān′stĕm′)
n.
The portion of the brain, consisting of the medulla oblongata, pons Varolii, and midbrain, that connects the spinal cord to the forebrain and cerebrum.

brain stem

A stalklike part of the brain, between the cerebrum and spinal cord. It contains the midbrain, pons, and medulla oblongata.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.brain stem - the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamusbrain stem - the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
neural structure - a structure that is part of the nervous system
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
medulla oblongata, medulla, bulb - lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata); "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"
pons Varolii, pons - 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
References in periodicals archive ?
Gemma's worst fears were confirmed when scans discovered a lump the size of a marble on George's brain stem.
Due to the location of the cancer in the brain stem, surgery is not possible.
Opioid receptors are located in the brain, brain stem, spinal cord, intestines, and other organs.
My husband had endured a massive brain stem stroke and every minute untreated meant another minute where his brain was starved of oxygen.
But what is remarkable about this case is that the brain stem doesn't control our thinking or consciousness, so the fact that he can giggle, smile and say 'Mummy' is fascinating.
Brain stem cells from middle-aged mice (9 months old) no longer divided as often as ones from 1.
All brain stem reflexes were absent mimicking brain death.
CT scans showed subtle petechial bleeds in the gray white junction and brain stem.
That program recently was extended to look at the ability of that same drug platform to stimulate the growth of healthy brain stem cells to create new nerve cells.
Total quantity or scope: Delivery of brain stem implants and sound processors Nucleus - 2 packages.
I was told last week, after the final chemotherapy session at Edinburgh's Western General Hospital, that there is no sign of the cancer in my spine or brain stem.
DRESDEN, Germany, February 5, 2014 -- Scientists here recently discovered a new mechanism governing brain stem cell proliferation.