149.牙的构造 (模式图) ※
基础医学

        1.牙冠crownoftooth2.牙龈gingiva3.牙颈neckoftooth4.牙周膜periodontalmembrane5.牙根rootoftooth6.牙槽骨alveolarbone7.牙根尖孔apicalforamen8.釉质enamel9.牙髓腔dentalcavity10.牙髓dentalpulp11.牙质dentine12.牙骨质cement13.牙根管rootcanal14.血管神经束vascularandnervetra    （共 227 字）     [阅读本文] >>