medullary

/ˈmɛdəˌlɛri/
adjective
  1. Relating to the medulla oblongata, the part of the brainstem that controls automatic functions like breathing and heartbeat.
    • The doctor explained that medullary functions are essential for survival.
    • Damage to medullary tissue can affect a person's ability to breathe without assistance.
    • The medullary region of the brain regulates vital reflexes such as coughing and swallowing.
  2. Relating to the inner part of an organ or structure, such as the kidney or adrenal gland.
    • The adrenal medullary hormones include adrenaline and noradrenaline.
    • A medullary tumor can develop in the center of the kidney.
    • Medullary cells in the kidney help concentrate urine.
  3. Relating to the pith or central tissue in plants or bones.
    • The stem's medullary region is softer than the outer layers.
    • In some plants, the medullary tissue stores nutrients.
    • The medullary cavity in the center of a bone contains bone marrow.
Antonyms
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