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Medulla Oblongata

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medulla oblongata

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


Origin:
1670–80; < NL: the long medulla
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
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medulla ob·lon·ga·ta   (ŏb'lông-gä'tə)   
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, circulation, and certain other bodily functions.

[New Latin medulla oblongāta : Latin medulla, medulla + New Latin oblongāta, feminine of oblongātus, oblong.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: medulla ob·lon·ga·ta
Pronunciation: -"äb-"lo[ng]-'gät-&
Function: noun
Inflected Form: plural medullaoblongatas or medullae ob·lon·ga·tae /-'gät-E, -'gä-"tI/
: the somewhat pyramidal last part of the vertebrate brain developedfrom the posterior portion of the hindbrain and continuous posteriorly with the spinal cord, enclosing the fourth ventricle, and containing nuclei associated with most of the cranial nerves, majorfiber tracts and decussations that link spinal with higher centers, and various centers mediating the control of involuntary vital functions (as respiration)
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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medulla oblongata medulla ob·lon·ga·ta (ŏb'lŏng-gā'tə, -gä'tə)
n. pl. medulla ob·lon·ga·tas or medullae ob·lon·ga·tae (-gā'tē, -gä'tē)
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.
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Science Dictionary
medulla oblongata   (ŏb'lông-gä'tə)  Pronunciation Key 
Plural medulla oblongatas or medullae oblongatae (ŏb'lông-gä'tē)
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia

medulla oblongata

the lowest part of the brain and the lowest portion of the brainstem. The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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