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用解剖和透明的方法,观察了74例不同年龄新鲜尸体C_3～C_7椎体的动脉供应。 1.颈椎椎体主要接受椎动脉的供应。此外,在C_6和C_7尚接受甲状腺下动脉、颈深动脉、肋颈干、最上肋间动脉和锁骨下动脉发出的分支。这些动脉在椎体的前外侧面,构成梯形吻合;在背侧面,形成长方形或六边形吻合。 2.每个颈椎椎体的营养动脉,从其前外侧面和背侧面进入,可分为中央支和周围支两组:中央支主干直、无分支,仅末梢发出树枝状分支,伸向椎体中央的上、下、左、右各部,供应相当于髓核投影区部位的椎体;周围支短、分支早,位于椎体周围的骨质内,供应相当于纤维环投影区部位的椎体。 3.前外侧营养动脉的中央支为0～3支,周围支为2～13支;背侧营养动脉的中央支为0～2支,周围支为0～6支。在椎体内,这些动脉的分支互相吻合。所谓终动脉只出现于发育期椎体的软骨区。
Anatomical and transparent methods were used to observe the arterial supply of 74 C_3 ~ C_7 vertebrae of fresh cadavers of different ages. 1. Cervical vertebral body to accept the supply of vertebral artery. In addition, branches of the inferior thyroid artery, deep neck artery, rib-neck stem, superior intercostal artery, and subclavian artery were still accepted at C_6 and C_7. These arteries form a trapezoidal anastomosis on the anterolateral side of the vertebral body; on the dorsal side, a rectangular or hexagonal anastomosis is formed. 2. Each vertebral vertebral nutrient artery, from its anterolateral and dorsal access, can be divided into two groups of central branch and the surrounding branch: the central branch of the main straight, no branch, only the peripheral branches dendrites, extending to the vertebral The upper, lower, left and right parts of the central part of the body supply the vertebral body equivalent to the projection area of the nucleus pulposus. The surrounding branches are short, the branches are early, and are located in the bone around the vertebral body. body. 3. The anterolateral nourishing artery has 0-3 central branches and 2-13 peripheral branches. The central branches of the dorsal nutrient artery are 0-2 branches and the surrounding branches are 0-6 branches. Within the vertebral body, the branches of these arteries coincide. The so-called terminal artery appears only in the development of vertebral cartilage area.