1. There is a central vein in the center of the medulla. 髓质中央有一大的静脉，称中央静脉。
2. This part of the vertebrate brain has two divisions, the medulla and the cerebellum. 脊椎动物脑子的这一部分可分为两部分：脑髓和小脑。
3. In this study, with the aggravation of renal function, the value of [cortex – medulla IBS%] had a gradual decrease in chronic nephrosis. 进一步说明了肾髓质在慢性肾病肾功能变化中的程度较肾皮质的改变更为明显。
英英解释
n.
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
3. the inner part of an organ or structure in plant or animal
