單項(xiàng)選擇題支配上頜第一磨牙及牙齦的神經(jīng)有()。

A.鼻腭神經(jīng)和上牙槽后神經(jīng)
B.腭前神經(jīng)和上牙槽后神經(jīng)
C.腭前神經(jīng)、上牙槽中神經(jīng)和上牙槽后神經(jīng)
D.鼻腭神經(jīng)、上牙槽中神經(jīng)和上牙槽后神經(jīng)
E.腭前神經(jīng)、上牙槽前神經(jīng)和上牙槽中神經(jīng)


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1.單項(xiàng)選擇題在腮腺淺葉前緣由上到下依次為()。

A.面橫動(dòng)脈,面神經(jīng)顴支,面神經(jīng)上頰支,腮腺導(dǎo)管,面神經(jīng)下頰支
B.面神經(jīng)顴支,面神經(jīng)上頰支,腮腺導(dǎo)管,面神經(jīng)下頰支,下頜緣支
C.面動(dòng)脈,面橫動(dòng)脈,面神經(jīng)顴支,腮腺導(dǎo)管
D.面橫動(dòng)脈,面神經(jīng)顴支,面神經(jīng)上頰支,腮腺導(dǎo)管,面神經(jīng)下頰支,面神經(jīng)下頜緣支
E.面神經(jīng)顴支,面橫動(dòng)脈,面神經(jīng)上頰支,腮脈導(dǎo)管,面神經(jīng)下頰支

2.單項(xiàng)選擇題臨床行下頜下區(qū)手術(shù)時(shí),切口應(yīng)在()。

A.下頜下緣下7mm
B.下頜下緣下10mm
C.下頜下緣下12mm
D.下頜下緣下15mm
E.緊貼下頜下緣處