- the lowest or hindmost part of the brain, continuous with the spinal cord.
Origin of medulla oblongata
1670–80; < New Latin: the long medulla
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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 & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
medulla oblongata(ŏb′lŏng-gā′tə, -gä′tə)
- The lowermost portion of the vertebrate brain, continuous with the spinal cord and responsible for the control of respiration, circulation, and other bodily functions.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- The lowermost portion of the brainstem in humans and other mammals. It is important in the reflex control of involuntary processes, including respiration, heartbeat, and blood pressure.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.