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Medulla   /mɪdˈələ/  /mɪdˈulə/   Listen
Medulla

noun
(pl. medullae, medullas)
1.
A white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers.  Synonyms: myelin, myeline.
2.
Lower or hindmost part of the brain; continuous with spinal cord; ('bulb' is an old term for medulla oblongata).  Synonyms: bulb, medulla oblongata.
3.
The inner part of an organ or structure in plant or animal.



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"Medulla" Quotes from Famous Books



... carnium, iterum cum carnibus in olla reponunt. Ollas etiam vel caldaria, vel alia vasa ad hoc deputata si abluunt, simili modo lauant. Apud eos est magnum peccatum, si de cibo vel potu perire permittatur aliquid. Vnde ossa, nisi prins extrahatur medulla, dari canibus non permittunt. Vestes etiam non lauant, nec lauari permittunt et maxim quo tonitrua ab illa hora incipiunt donec desinant. Lac iumentinum bibunt in maxima quantitate si habent: bibunt etiam ouinum, caprinum, vaccinum, et camelorum. Vinum, ceruisiam, ...
— The Principal Navigations, Voyages, Traffiques, and Discoveries - Vol. II • Richard Hakluyt

... matter clear, it is necessary to separate the weight of the cerebral hemispheres from the other nervous centers, such as the cerebellum, corpora striata, the optic thalami, the mid-brain, the pons Varolii, the medulla oblongata and the spinal cord, for these centers constitute parts which are phylogenetically older, that is to say, inherited from lower animal ancestors. Compared with the cerebral hemispheres, these nerve centers are relatively ...
— The Sexual Question - A Scientific, psychological, hygienic and sociological study • August Forel

... physical organs in connection with whose activity consciousness is manifested are the upper and outer parts of the brain,—the cerebrum and cerebellum. These organs never receive impressions directly from the outside world, but only from lower nerve-centres, such as the spinal cord, the medulla, the optic lobes, and other special centres of sensation. The impressions received by the cerebrum and cerebellum are waves of molecular disturbance sent up along centripetal nerves from the lower centres, and presently drafted off ...
— The Destiny of Man - Viewed in the Light of His Origin • John Fiske

... repatterned themselves inside the helmet and were fed into Allenby at the base of his skull, at the medulla. The currents of alternating ions mixed with the currents of his varied and random brain waves, and the impulses of one became the impulses of the other. Allenby jerked once with the initial shock and was then still, his mind and body fused ...
— Pleasant Journey • Richard F. Thieme



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



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