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 ?
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.
We understand the guidelines on criteria for diagnosing brain stem death in children under two months old are under review by the Royal College of Paediatrics and Child Health and are due very soon.
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.
Ruby's 30 treatments, which ended in October, were needed after a brain stem tumour returned for a third time despite proton therapy treatment in the USA.
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.
The most significant difference was discovered in the brain stem, where myelination was less in the smaller pig fetuses.
The study found that all the babies who died had abnormalities of four neuro-chemicals in the brain stem, located at the skull's base and connects the brain to the spinal cord.
The study found that all the babies who died had abnormalities of four neurochemicals in the brain stem, located at the skull's base and connects the brain to the spinal cord.
When electrodes stimulated a part of the brain stem called the mesencephalic locomotor region, the rats began walking almost normally.
The officer, who had been feeling unwell for just a few weeks, had her life-support machine turned off after her blood vessels swelled and caused brain stem damage.
When Grace Woodhead was born, her parents were told she only had months to live as she had untreatable brain stem cancer which affects only around five babies world-wide each year.