MEDULLA • FREE TRANSLATOR.ORG • Definition of Medulla

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/mɪdˈələ/ /mɪdˈulə/ Listen

noun

Medulla n.

Marrow; pith; hence, essence. (Obs.)

(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.

(Bot.) A soft tissue, occupying the center of the stem or branch of a plant; pith.

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.

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Etymology of 'Medulla'

Collaborative International Dictionary of English 0.48

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"Medulla" Quotes from Famous Books

... central marrow (medulla centralis) is the real organ of psychic action in the narrower sense. However we conceive the intimate connection of this organ and its functions, it is certain that its characteristic actions, which we call sensation, will, ...

— The Evolution of Man, V.2 • Ernst Haeckel

... again," said he. "It is the great restorative. Your nerves are shaken. Some little congestion of the medulla and pons. It is always instructive to reduce psychic or emotional conditions to their physical equivalents. You feel that your anchor is still firm in a bottom of ...

— Round the Red Lamp - Being Facts and Fancies of Medical Life • Arthur Conan Doyle