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n. pl. medulla ob·lon·ga·tas or me·dul·lae ob·lon·ga·tae (mĭ-dŭl′ē ŏb′lông-gä′tē)
The lowermost portion of the vertebrate brain, continuous with the spinal cord, responsible for the control of respiration, blood pressure and heart rate, and certain other involuntary bodily functions.
[New Latin medulla oblongāta : Latin medulla, medulla + New Latin oblongāta, feminine of oblongātus, oblong.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n, pl medulla oblongatas or medullae oblongatae (mɪˈdʌliː ˌɒblɒŋˈɡɑːtiː)
(Anatomy) the lower stalklike section of the brain, continuous with the spinal cord, containing control centres for the heart and lungs
[C17: New Latin: oblong-shaped medulla]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
medul′la ob•long•a′ta(ˌɒb lɔŋˈgɑ tə, -lɒŋ-)
n., pl. medulla oblongatas.
the lowest or hindmost part of the vertebrate brain, continuous with the spinal cord.
[1670–80; < New Latin: the long medulla]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
The lowermost portion of the brainstem in humans and other mammals. It regulates many involuntary functions, such as breathing and circulation.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The lowest part of the brain stem, which contains the vital centers controlling heartbeat and respiration.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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|Noun||1.||medulla oblongata - 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"|
neural structure - a structure that is part of the nervous system
brain stem, brainstem, 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 hypothalamus
respiratory center - the center in the medulla oblongata and pons that integrates sensory information about the level of oxygen and carbon dioxide in the blood and determines the signals to be sent to the respiratory muscles
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