Objective To explore the arterial origin and the distribution of the extracranial branches of the facial nerve. Methods Red latex or red chlorinated polyvinyl chloride was injected into the arteries of 15 fresh adult head specimens by both common carotid artery catheterization. The arterial origin and distribution of the extracranial branches of the facial nerve were observed. Results The nutrient arteries of the extracranial branches of the facial nerve originated from stylomastoid artery of the posterior auricular artery, the facial nervous branch of superficial temporal artery, transverse facial artery, superior and inferior facial nervous branches of external carotid artery and the posteriorand anterior facial nervous branches of external carotid artery. The outer diameters of them were (0.8±0.2) mm, (0.9±0.4) mm, (1.9±0.3) mm, (1.0±0.2) mm, (1.1±0.4) mm, (1.0±0.2) mm and (1.1±0.6) mm respectively. The sub-branches ofthe attendant artery of the facial nerve anastomosed each other in addition to supplying their own nerve, and a rich vascular network was formed between the facial nerve and adjacent tissue. Conclusion The study on blood supply of the extracranial segment of the facial nerve can provide anatomic basis for avoiding injury of the nutrient arteries of the facial nerve during operation of the parotidean and masseteric region clinically.
目的 探讨对侧颈动脉已被切除的颈动脉体瘤的手术方法。方法 左颈动脉体瘤患者1例，女，54岁。右侧颈动脉31年前因右颈动脉体瘤手术已经切除，本次手术以成对的蚊式钳逐步直接分离至瘤体与颈内动脉的Gordon-Tayler白线，在保证颈内动脉完整的情况下，完整切除瘤体及包裹其内的颈外动脉。结果 患者术后无声音嘶哑、呛咳、头晕等并发症，顺利出院。结论 充分的术前准备及正确的分离平面是保证手术顺利的关键。