髓腔medullary cavity
髓窦medullary sinus【解剖】
背髓网状结构dorsal medullary reticular formation
（肾）髓质渗透压梯度medullary osmotic pressure gradient【生理】
初生髓线;原生芒髓primary medullary ray
髓袢髓质厚壁段升支medullary thick ascending limb
【医】 横神经褶transverse medullary folds.
髓鞘medullary sheath