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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.


Other Word Forms

Noun Inflected Forms

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.

See Examples For:

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

It consists of the midbrain, medulla oblongata, and the pons.

From Textbooks Jun. 9, 2022

They signal the cardiovascular center as well as the respiratory centers in the medulla oblongata.

From Textbooks Jun. 19, 2013

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

A constriction also occurs in the hind vesicle or rhombencephalon, dividing it into an anterior part, the metencephalon, from which the cerebellum is developed, and a posterior or myelencephalon, the primitive medulla oblongata.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" by Various

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