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medulla oblongata

American  

noun

Anatomy.
medulla oblongatas, plural medullae oblongatae plural
  1. the lowest or hindmost part of the brain, continuous with the spinal cord.


medulla oblongata British  
/ ˌɒblɒŋˈɡɑːtə /

noun

  1. the lower stalklike section of the brain, continuous with the spinal cord, containing control centres for the heart and lungs

"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 Scientific  
/ ŏb′lông-gätə /
medulla oblongatas plural
  1. 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.


Etymology

Origin of medulla oblongata

1670–80; < New Latin: the long medulla

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The library nearly resembles the shape of a brain, with the entrance being the medulla oblongata and the robust flooring as the cerebellum.

From Los Angeles Times • Jan. 6, 2023

The respiratory center that provides autonomic control of breathing is part of the medulla oblongata.

From Textbooks • Jun. 9, 2022

The major factor that stimulates the medulla oblongata and pons to produce respiration is surprisingly not oxygen concentration, but rather the concentration of carbon dioxide in the blood.

From Textbooks • Jun. 19, 2013

Figure 19.32 Autonomic Innervation of the Heart Cardioaccelerator and cardioinhibitory areas are components of the paired cardiac centers located in the medulla oblongata of the brain.

From Textbooks • Jun. 19, 2013

A vertical section of the cerebrum, cerebellum, and medulla oblongata, showing the relation of the cranial nerves at their origin.

From A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) by Cutter, Calvin

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