Methods Ten cadaveric heads fixed with formalin and with their arteries and veins perfused using red or blue color latex were dissected with microsurgical anatomical skills.

• 方法应用显微外科解剖学技术，对经甲醛固定、动静脉血管内分别灌注红、蓝乳胶的10具成人尸头标本，按手术入路逐层解剖。