Medulla oblongata
From Health Encyclopedia
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Used for
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Broader Terms
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Narrower Terms
area postrema, dorsal motor nucleus, hypoglossal nucleus, solitary tract nucleus
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Related Terms
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Scope Note
caudal subdivision of the hindbrain interposed between the spinal cord and the pons; adult derivative of the myelencephalon, the most caudal subdivision of the developing brain; it has two subdivisions the open medulla bordering on the fourth ventricle and the closed medulla which surrounds the rostral part of the central canal.
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Facts (generated by robot; please edit if you find it inaccurate)
- 406 The medulla oblongata is the lower portion of the brainstem.
- Seizure-induced c-fos expression in rat medulla oblongata is not dependent on associated elevation of blood pressure.
- The nucleus reticularis gigantocellularis of the medulla oblongata is a highly sensitive site in the production of morphine analgesia in the rat.
- The medulla oblongata is a cone-shaped part of the brain that is located on the lowermost portion of the brain stem and gradually transitions into the spinal cord.
- 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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