medullas
n．髓质（复数）：指生物体内的某些器官或组织的中心部分，如脑髓、肾髓等。
例句
In normal group and sham-operated group, Microglia in medullas including internal capsule and corpus callosum appeared weakly NGF as well as GDNF weakly positive.
正常组和假手术组内囊、胼胝体等处的髓质小胶质细胞GDNF、NGF呈弱阳性；
