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

Preoblongata :: Preoblongata (n.) The anterior part of the medulla oblongata.

Pons :: Pons (n.) A bridge; -- applied to several parts which connect others, but especially to the pons Varolii, a prominent band of nervous tissue situated on the ventral side of the medulla oblongata and connected at each side with the hemispheres of the cerebellum; the mesocephalon. See Brain..

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

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.

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..

Oblongatal :: Oblongatal (a.) Of or pertaining to the medulla oblongata; medullar.

Metencephalon :: Metencephalon (n.) The posterior part of the brain, including the medulla; the afterbrain. Sometimes abbreviated to meten..

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..

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

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

Medullar :: Medullar (a.) See Medullary.

Neurokeratin :: Neurokeratin (n.) A substance, resembling keratin, present in nerve tissue, as in the sheath of the axis cylinder of medullated nerve fibers. Like keratin it resists the action of most chemical agents, and by decomposition with sulphuric acid yields leucin and tyrosin..

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

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

Schwann''s White Substance :: Schwann's white substance () The substance of the medullary sheath.

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

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..

Endosteum :: Endosteum (n.) The layer of vascular connective tissue lining the medullary cavities of bone.

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