為您提供medulla英英釋意。" />

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首頁英語詞典medullamedulla英英釋意

medulla

英 [me'd?l?] 美[m?'d?l?]
  • n. 髓質(zhì)
  • 的縮寫

英英釋意

1. a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
2. lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata);
"the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"
3. the inner part of an organ or structure in plant or animal