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Marrow :: Marrow (n.) The tissue which fills the cavities of most bones; the medulla. In the larger cavities it is commonly very fatty, but in the smaller cavities it is much less fatty, and red or reddish in color..

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

Postoblongata :: Postoblongata (n.) The posterior part of the medulla oblongata.

Bulbar :: Bulbar (a.) Of or pertaining to bulb; especially, in medicine, pertaining to the bulb of the spinal cord, or medulla oblongata; as, bulbar paralysis..

Neurenteric :: Neurenteric (a.) Of or pertaining to both the neuron and the enteron; as, the neurenteric canal, which, in embroys of many vertebrates, connects the medullary tube and the primitive intestine. See Illust. of Ectoderm..

Myelin :: Myelin (n.) A soft white substance constituting the medullary sheats of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat..

Restiform :: Restiform (a.) Formed like a rope; -- applied especially to several ropelike bundles or masses of fibers on the dorsal side of the medulla oblongata.

Medullary :: Medullary (a.) Pertaining to, consisting of, or resembling, marrow or medulla..

Medullar :: Medullar (a.) See Medullary.

Myeloidin :: Myeloidin (n.) A substance, present in the protoplasm of the retinal epithelium cells, and resembling, if not identical with, the substance (myelin) forming the medullary sheaths of nerve fibers..

Medulla :: Medulla (n.) Marrow; pith; hence, essence..

Medullin :: Medullin (n.) A variety of lignin or cellulose found in the medulla, or pith, of certain plants. Cf. Lignin, and Cellulose..

Medulla :: Medulla (n.) 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..

Crus :: Crus (n.) Often applied, especially in the plural, to parts which are supposed to resemble a pair of legs; as, the crura of the diaphragm, a pair of muscles attached to it; crura cerebri, two bundles of nerve fibers in the base of the brain, connecting the medulla and the forebrain..

Medullary :: Medullary (a.) Pertaining to the medula oblongata.

Notochord :: Notochord (n.) An elastic cartilagelike rod which is developed beneath the medullary groove in the vertebrate embryo, and constitutes the primitive axial skeleton around which the centra of the vertebrae and the posterior part of the base of the skull are developed; the chorda dorsalis. See Illust. of Ectoderm..

Cerebellum :: Cerebellum (n.) The large lobe of the hind brain in front of and above the medulla; the little brain. It controls combined muscular action. See Brain.

Nonmedullated :: Nonmedullated (a.) Not medullated; (Anat.) without a medulla or marrow, or without a medullary sheath; as, a nonmedullated nerve fiber..

Medullary :: Medullary (a.) Filled with spongy pith; pithy.

Medullated :: Medullated (a.) Furnished with a medulla or marrow, or with a medullary sheath; as, a medullated nerve fiber..

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