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brainstem
or brain stem
[ breyn-stem ]
/ ˈbreɪnˌstɛm /
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noun
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 as respiration and heartbeat.
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Words nearby brainstem
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use brainstem in a sentence
The cortex borrows, as it were, its consciousness from the brainstem.
You say we really have two brains—the brainstem and the cortex.
He makes a convincing case for paying more attention to the “densely knotted core of the brainstem.”
Brain death implies the complete and permanent absence of neurological function in the cortex and the brainstem.
Families and Physicians Debate the True Meaning of Brain Death|Dr. Anand Veeravagu, MD, Richard Joseph|January 14, 2014|DAILY BEAST
British Dictionary definitions for brainstem
brainstem
/ (ˈbreɪnˌstɛm) /
noun
the stalklike part of the brain consisting of the medulla oblongata, the midbrain, and the pons Varolii
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for brainstem
brainstem
n.
The portion of the brain, consisting of the medulla oblongata, pons Varolii, and mesencephalon, that connects the spinal cord to the forebrain and cerebrum.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for brainstem
brainstem
[ brān′stĕm′ ]
The part of the vertebrate brain located at the base of the brain and made up of the medulla oblongata, pons, and midbrain. The brainstem controls and regulates vital body functions, including respiration, heart rate, and blood pressure. See also reticular formation.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.