筛动脉的应用解剖

用40具干颅与20具尸体头颅对眶内的筛孔与筛动脉进行了解剖学研究。发现筛前、后孔多数位于额筛缝处式以上。由眶内缘点至筛前孔的距离约16mm,至筛后孔为30mm左右。筛后孔离视神经管眶口较近,距离5～8mm的占78％。筛前动脉较短,品径较粗,紧贴眶壁走行。筛后动脉较长而细,与上斜肌关系密切,有时还发支供应其他眼外肌。

APPLIED ANATOMY OF THE ETHMOIDAL ARTERIES

An anatomical study was made in 40 dried skulls (80 orbits) and 20 cadavers with the ethmoidal arteries. In the dried skulls, a large number of the ethmoidal foramen lie to the frontoethmoidal suture line or above it.The distance from dacryon point to the anterior ethmoidal foramen is about 16 mm and to the posterior ethmoidal foramen, about 30 mm.The distance from the posterior ethmoidal foramen to the orbital opening of the optic canal is 5-8 mm in 78%.In this cadaver study, the anterior ethmoidal arteries are shorter in length and larger in diameter, and they run close to the orbital wall.The posterior ethmoidal arteries arc longer and thinner than the anterior ethmoidal arteries, and they are closely related to the superior oblique muscles.Sometime they give off some branches to the extra-ocular muscles