medulla

Noun
  1. is a type of: fat - a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides)
    substance meronym: medullary sheath, myelin sheath - a layer of myelin encasing (and insulating) the axons of medullated nerve fibers
    same as: myelin, myeline
  2. is a type of: neural structure - a structure that is part of the nervous system
    has: respiratory center - the center in the medulla oblongata and pons that integrates sensory information about the level of oxygen and carbon dioxide in the blood and determines the signals to be sent to the respiratory muscles
    is a part of: brain stem, brain-stem, brainstem - the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
    same as: bulb, medulla oblongata
  3. is a type of:
    subtypes: adrenal medulla - the medulla of the adrenal gland; secretes epinephrine

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