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A型题:每一个问题有(A) (B) (C) (D)(E)5个答案,从中选一最佳答案 1.腮腺导管口位于何处? A、颊部粘膜的下1/3处 B、下颌第二磨牙牙冠部平对的颊粘膜上 C、平对上颌第二磨牙牙冠部颊粘膜的唾腺乳头 D、颊垫尖 E、翼下颌皱襞与颊垫尖之间 2.颊脂垫尖是下齿槽神经阻滞麻醉的重要标志,在张大口时,此尖约相当于什么结构的平面? A、乙状切迹平面 B、下颌孔平面 C、喙状突的平面 D、外斜脊的平面 E、下颌神经分出颊神经的平面 3.上下唇动脉位于唇部的何层中? A、皮下 B、浅筋膜上 C、口轮匝肌内
A type of question: each question has (A) (B) (C) (D) (E) 5 answers, choose one of the best answer 1. Parotid duct mouth is located where? A, buccal mucosa under 1 / 3 B, mandibular second molar crown on the right buccal mucosa C, flat on the maxillary second molar buccal mucosa of the salivary gland mucosal D, buccal cushion tip E, wing mandibular fold and buccal cushion tip 2. The buccal fat pad tip is an important symbol of the lower alveolar nerve block anesthesia in Zhang mouth, the tip is equivalent to what the structure of the plane? A, sigmoid notch plane B, mandibular hole plane C, beak Protruding plane D, outer oblique ridge plane E, the mandibular nerve points out the plane of the buccal nerve 3. What is the upper and lower lip arteries in the lip? A, subcutaneous B, superficial fascia C, orbicularis oris