| 单词 | medulla |
| 释义 | medulla (once / 9092 pages) n WORD FAMILY medulla: medullae, medullary, medullas USAGE EXAMPLESAnd at the center is an empty zone called the medulla that helps insulate the hair. The Verge(Sep 11, 2016) He searched the nape of Orr’s neck for the probable site of the medulla oblongata. Joseph Heller, Catch-22(1961) Stewart called it Infotainment Confusion Syndrome, a brain misfire that occurs, he said, “when the ‘celebrity cortex’ gets its wires crossed with the ‘medulla anchor-gata.’” Washington Times(Feb 11, 2015) 1n the inner part of an organ or structure in plant or animal Ant|Hypo|Hyper cortex the tissue forming the outer layer of an organ or structure in plant or animal adrenal medulla the medulla of the adrenal gland; secretes epinephrine animal tissue the tissue in the bodies of animals plant tissuethe tissue of a plant 2n a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers Syn|Hyper myelin, myeline fat a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides) 3n 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 Syn|Hyper bulb, medulla oblongata neural structure a structure that is part of the nervous system |
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