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MEDULLA - Definiția din dicționar

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Me*dul"la (?), n. [L.] 1. Marrow; pith; hence, essence. [Obs.] Milton.
[1913 Webster]

2. (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.
[1913 Webster]

3. (Bot.) A soft tissue, occupying the center of the stem or branch of a plant; pith.
[1913 Webster]

4. See medulla oblongata.
[PJC]

‖Medulla oblongata. [L., oblong medulla] (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.
[1913 Webster]