medulla oblongata

noun
medulla ob·​lon·​ga·​ta | \ -ˌä-ˌblȯŋ-ˈgä-tə How to pronounce medulla oblongata (audio) \
plural medulla oblongatas or medullae oblongatae\ -​ˌä-​ˌblȯŋ-​ˈgä-​tē How to pronounce medulla oblongata (audio) , -​ˌtī \

Definition of medulla oblongata

: the part of the vertebrate brain that is continuous posteriorly with the spinal cord and that contains the centers controlling involuntary vital functions — see brain illustration

Examples of medulla oblongata in a Sentence

Recent Examples on the Web Regardless of what underlies it, the sensation of nausea originates in the medulla oblongata, a part of your brain that sits just above your spinal cord. Patrick Wilson, Outside Online, 13 Apr. 2020 Another part of the brain, the medulla oblongata, gets in touch with the heart, which increases its rate and the amount of blood pumped per beat. Elizabeth Pennisi, Science | AAAS, 12 Nov. 2020 Your brain interprets particularly suspenseful information through the medulla oblongata, which produces adrenaline. Hannah Malach, Good Housekeeping, 22 Sep. 2020 That receptor then sends a signal through the cranial nerves to the medulla oblongata, which is part of your brainstem, and through to your primary gustatory complex, which interprets individual signals as flavors. Popular Science, 21 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'medulla oblongata.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of medulla oblongata

1668, in the meaning defined above

History and Etymology for medulla oblongata

New Latin, literally, oblong medulla

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The first known use of medulla oblongata was in 1668

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Dictionary Entries Near medulla oblongata

medulla

medulla oblongata

medullary

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Cite this Entry

“Medulla oblongata.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/medulla%20oblongata. Accessed 7 Jul. 2022.

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More Definitions for medulla oblongata

medulla oblongata

noun
me·​dul·​la ob·​lon·​ga·​ta | \ mə-ˈdə-lə-ˌä-ˌblȯŋ-ˈgä-tə How to pronounce medulla oblongata (audio) \

Kids Definition of medulla oblongata

: the part of the brain that joins the spinal cord and is concerned especially with control of involuntary activities (as breathing and beating of the heart) necessary for life

medulla oblongata

noun
medulla ob·​lon·​ga·​ta | \ -ˌäb-ˌlȯŋ-ˈgät-ə How to pronounce medulla oblongata (audio) \
plural medulla oblongatas or medullae oblongatae\ -​ˈgät-​ē How to pronounce medulla oblongata (audio) , -​ˈgä-​ˌtī How to pronounce medulla oblongata (audio) \

Medical Definition of medulla oblongata

: the somewhat pyramidal last part of the vertebrate brain developed from 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, major fiber tracts and decussations that link spinal with higher centers, and various centers mediating the control of involuntary vital functions (as respiration)

More from Merriam-Webster on medulla oblongata

Britannica.com: Encyclopedia article about medulla oblongata

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