肾脏的交感神经支配

采用大体解剖学方法和肾内注射HRP逆行标记神经元的方法,研究了猫肾脏的交感神经支配。发现了下述的待点。1.猫左、右侧腹腔神经节相互融合,呈半环状包绕在肠系膜上(前)动脉的起始处,于其融合部,各发出左、右肾支。肠系膜上神经节与右侧腹腔神经节融合。2.肾交感神经节后神经元,分别位于腹腔神轻节,同侧主动脉肾神经节和T_(12)～L~4节段的交感干神经节内,並具有局部定位分布的关系。3.肾交感神经节后纤维主要来自腹腔神经节(82.08％),其次是主动脉肾神经节(12.76％),交感干神经节最少(5.16％)。4.肾交感神经节后神经元,多呈圆形或椭圆形,交感干神经节中有少量呈梭形。5.支配肾周腹膜的交感神经节后神经元与肾交感神经节后神经元存在部位、数量和在各种神经节内分布形式均不相同。

THE SYMPATHETIC INNERVATION OF THE KIDNEY OF THE CAT

By gross dissection and retrograde labeling with HRP, the sympathetic innervation of the kidney was studied in the cat. 1. The left and right coeliac ganglia in the cat fuse together in a semicircular shape around the origin of the superior mesenteric a., and give rise to the left and right renal branches. The superior mesenteric ganglion fuses with the right coeliac ganglion. 2. The sympathetic postganglionic neurons to the kidney lie in the coeliac ganglion, aortieorenal ganglion or ganglia T_(12)-L_4 of sympathetic trunk of the same side, in which, however, they are distributed in proper locations. 3. The majority of the sympathetic postganglionie fibers in the kidney come from the coeliac ganglion(82.08%), less from the aortieorenal gang lion(12.76％), and a little from ganglia of sympathetic trunk(5.16%). 4. The sympathetic postganglionic neurons are round and oval in shape; and a few are fusiform lying in the ganglia of sympathetic trunk. 5. The location, amount and type of distribution of sympathetic postganglionic neurons to the kidney are different in various ganglia. The physiological and the Clinical significance of the sympathetic nerves in the kidney are discussed.