補充 唾腺位於 submucosa 口內角化上皮並沒有小唾腺
課本原文:
In regions such as the gingiva and parts of the hard palate, oral mucosa is attached directly to the periosteum of underlying bone, with no intervening submucosa
58.牙齦沒有下列何種構造? (A)上皮(epithelium) (B)固有..-阿摩線上測驗