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Medulla   Listen
noun
Medulla  n.  
1.
Marrow; pith; hence, essence. (Obs.)
2.
(Anat.) The marrow of bones; the deep or inner portion of an organ or part; as, the medulla, or medullary substance, of the kidney; specifically, the medula oblongata.
3.
(Bot.) A soft tissue, occupying the center of the stem or branch of a plant; pith.
4.
See medulla oblongata.
Medulla oblongata. (Anat.), the posterior part of the brain connected with the spinal cord. It includes all the hindbrain except the cerebellum and pons, and from it a large part of the cranial nerves arise. It controls very largely respiration, circulation, swallowing, and other functions, and is the most vital part of the brain; called also bulb of the spinal cord. See Brain.






Collaborative International Dictionary of English 0.48








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Words linked to "Medulla" :   cortex, fat, bulb, brain stem, brain-stem, animal tissue, medullary sheath, adrenal medulla, respiratory center, brainstem, neural structure, medulla oblongata, plant tissue, myelin sheath, medullary, myeline, myelin, medulla spinalis



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