'Bulb of the spinal cord' definitions:

Definition of 'Bulb of the spinal cord'

From: GCIDE
  • Bulb \Bulb\ (b[u^]lb), n. [L. bulbus, Gr. bolbo`s: cf. F. bulbe.]
  • 1. (Bot.) A spheroidal body growing from a plant either above or below the ground (usually below), which is strictly a bud, consisting of a cluster of partially developed leaves, and producing, as it grows, a stem above, and roots below, as in the onion, tulip, etc. It differs from a corm in not being solid. [1913 Webster]
  • 2. (Anat.) A name given to some parts that resemble in shape certain bulbous roots; as, the bulb of the aorta. [1913 Webster]
  • Bulb of the eye, the eyeball.
  • Bulb of a hair, the "root," or part whence the hair originates.
  • Bulb of the spinal cord, the medulla oblongata, often called simply bulb.
  • Bulb of a tooth, the vascular and nervous papilla contained in the cavity of the tooth. [1913 Webster]
  • 3. An expansion or protuberance on a stem or tube, as the bulb of a thermometer, which may be of any form, as spherical, cylindrical, curved, etc. --Tomlinson. [1913 Webster]
  • 3. a light bulb. [1913 Webster]

Definition of 'bulb of the spinal cord'

From: GCIDE
  • Medulla \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]