单词：medullae
n. 髓, 髓鞘, 髓质
[医] 髓[质]
[医] 髓[质]
n a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
n lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
n the inner part of an organ or structure in plant or animal
n lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
n the inner part of an organ or structure in plant or animal