舌下腺 Sublingual Gland A A Mucous acinus. B Serous demilunes Department Oral Pathology, Shandong University 2013/12/18 htt:/1.51.214.13Department Oral Pathology, Shandong University 16 2013/12/18 http://1.51.214.13 舌下腺 Sublingual Gland A, Mucous acinus; B, Serous demilunes