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Medullary   Listen
adjective
Medullary  adj.  
1.
(Anat.)
(a)
Pertaining to, consisting of, or resembling, marrow or medulla.
(b)
Pertaining to the medula oblongata.
2.
(Bot.) Filled with spongy pith; pithy.
Medullary groove (Anat.), a groove, in the epiblast of the vertebrate blastoderm, the edges of which unite, making a tube (the medullary canal) from which the brain and spinal cord are developed.
Medullary rays (Bot.), the rays of cellular tissue seen in a transverse section of exogenous wood, which pass from the pith to the bark.
Medullary sheath (Anat.), the layer of white semifluid substance (myelin), between the primitive sheath and axis cylinder of a medullated nerve fiber.






Collaborative International Dictionary of English 0.48








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"Medullary" Quotes from Famous Books



... than usual; the inferior lobe extending downwards, near to crest of ileum; the whole organ loaded with inky-coloured blood; the substance easily torn. The kidneys presented a natural appearance; the adipose substance in which they were imbedded was oedematous; the medullary substance of each presented a ...
— An Investigation into the Nature of Black Phthisis • Archibald Makellar

... seen that the shaft is a hollow cylinder, formed of compact tissue, enclosing a cavity called the medullary canal, which is filled with a pulpy, yellow fat called marrow. The marrow is richly supplied with blood-vessels, which enter the cavity through small openings in the compact tissue. In fact, all over the surface of bone are minute canals leading into the substance. One of these, ...
— A Practical Physiology • Albert F. Blaisdell

... even if there is a destruction of the brain at a-b, still the mind and will can act through both centres, although not so efficiently. Likewise, if there is a destruction of the fibres proceeding from the brain centres to the lower medullary and spinal centres, the will is still able to act upon the muscles of phonation and breathing of both sides of the body because of the intimate connection of the lower medullary and spinal centres ...
— The Brain and the Voice in Speech and Song • F. W. Mott

... sensorium is used to express not only the medullary part of the brain, spinal marrow, nerves, organs of sense and muscles, but also at the same time that living principle, or spirit of animation, which resides throughout the body, without being cognizable to our senses except ...
— The Temple of Nature; or, the Origin of Society - A Poem, with Philosophical Notes • Erasmus Darwin

... in the manner of failure, while blocks that are much alike in the size, number, and distribution of the elements of unequal resistance may behave very similarly. The direction of rupture is, according to Jaccard, not influenced by the distribution of the medullary rays.[7] These are curved with the bundles of fibres to which they are attached. In any case the failure starts at the weakest points and follows the lines of least resistance. The plane of failure, as visible on radial surfaces, is horizontal, ...
— The Mechanical Properties of Wood • Samuel J. Record

... disturbance, or modification, of the psychical, motorial, and sensorial functions of the great cerebral ganglion. But it would be equally absurd to presuppose that these several functions can be disarranged for months, without more or less disorganisation of the medullary, or even of the cineritious, matter of the encephialon. Therefore—dissection of your talented son would doubtless reveal at this moment either steatonatous or atheromatous deposits in the cerebral blood-vessels, or an encysted ...
— Hard Cash • Charles Reade

... viewed as magnets of electro-vitality, require to be regarded as having each a positive nucleus in the interior, on which are ranged the negative ends of the currents which go out from this positive nucleus in every direction to the surface of the medullary organ—so radiating, as it were, from center to periphery. And the nerve-lines and ramifications which issue from these great nerve-centers are polarized evidently in the same way—the electro-vital ...
— A Newly Discovered System of Electrical Medication • Daniel Clark



Words linked to "Medullary" :   medulla, medullary ray, marrow, medullary sheath



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