A.咽隱窩內 B.腭舌弓和腭咽弓之間的窩內 C.口腔內 D.梨狀隱窩內 E.咽后壁內
A.azygosvein B.brachiocephalicvein C.coronarysinus D.inferiorvenacava E.superiorvenacava
A.mediastinum B.thoraciccavity C.pericardialcavity D.pleuralcavity E.sternalangle