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Definition of Medulla oblongata

Medulla oblongata: The base of the brain, which is formed by the enlarged top of the spinal cord. The medulla oblongata directly controls breathing, blood flow, and other essential functions.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=11633
Last Editorial Review: 3/19/2012

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