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Medical Dictionary

medulla oblongata

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noun medulla ob·lon·ga·ta \-ˌäb-ˌlȯŋ-ˈgät-ə\

Medical Definition of medulla oblongata

plural medulla oblongatas or medullae oblongatae \-ˈgät-ē, -ˈgä-ˌtī\play play

  1. :  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)



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