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本文用解剖、透明和X线动脉造影等方法,研究了48具尸体中不同年龄枢椎齿状突的动脉供应,其结果如下: 一、齿状突除直接接受椎动脉的上行分支——前升动脉和后升动脉外,还间接接受咽升动脉水平分支的供应。这些动脉在齿状突周围构成独特的吻合形式,其上方呈弓状(即为顶弓)。二、齿状突的营养动脉分二组:基底部营养动脉和尖部营养动脉。前者从基底部前外侧面和背侧面的中央区进入,每侧多为1支(81.94+3.21％);后者从尖部上方进入,多见2支(69.44±7.68％)。在新生儿、儿童和成人,基底部营养动脉的外径(mm)分别为0.09～0.15、0.16～0.19、0.24～0.29,尖部营养动脉的外径(mm)则各为0.03～0.06、0.06～0.10,0.10～0.14。三、齿状突骨内动脉的配布,因年龄而不同。小于12岁的标本中,齿状突尖部骨化尚未完成,基底部和尖部的营养动脉不存在吻合。成人的齿状突已全部骨化,突内各动脉之间吻合成网状,其中以基底部处最为致密。
In this paper, anatomical, transparent and X-ray angiography and other methods to study the 48 bodies of different age at the age of the odontoid odontoid artery supply, the results are as follows: First, the odontoid disruption directly accept the vertebral artery upstream branch - before Ascending and posterior ascending arteries, but also indirectly accepted the supply of pharyngeal artery branches. These arteries form a unique anastomotic pattern around the odontoid process, with the arch above them (the top arch). Second, the dentate nutrition artery divided into two groups: basal nutrition artery and tip nutrition artery. The former entered from the central area of the anterolateral and dorsal surface of the basal part, with more than one branch (81.94 + 3.21%) on each side and two branches (69.44 ± 7.68%) more from the top of the tip. In neonates, children and adults, the basal diameter of the nutritional artery (mm) were 0.09 ~ 0.15,0.16 ~ 0.19,0.24 ~ 0.29, the tip of the nutritional artery diameter (mm) were 0.03 ~ 0.06,0.06 ~ 0.10, 0.10 ~ 0.14. Third, the distribution of dentate intraosseous artery, due to age and different. Less than 12-year-old specimens, ossification of the tip of the odontoid has not been completed, the basal and tip of the nutrient artery does not match. Adult odontoid has all ossification, the anastomosis between the arteries into a mesh, in which the most dense at the base of the Department.