单词	medulla oblongata
释义	medulla oblongata noun medulla ob·​lon·​ga·​ta -ˌä-ˌblȯŋ-ˈgä-tə  plural medulla oblongatas or medullae oblongatae -ˌä-ˌblȯŋ-ˈgä-tē  -ˌtī : 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 Example Sentences 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 Word History Etymology New Latin, literally, oblong medulla First Known Use 1668, in the meaning defined above Kids Definition medulla oblongata noun me·​dul·​la ob·​lon·​ga·​ta mə-ˈdə-lə-ˌä-ˌblȯŋ-ˈgä-tə  : 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 Medical Definition medulla oblongata noun medulla ob·​lon·​ga·​ta -ˌäb-ˌlȯŋ-ˈgät-ə  plural medulla oblongatas or medullae oblongatae -ˈgät-ē  -ˈgä-ˌtī  : 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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