【摘要】 解剖观察了羊5头、牛3头的胸、腰和荐段交感神经的交通支。结果为,在胸和腰节段,每一脊神经一般均有二条交通支;腰、荐羊(牛)节段,各只有一条交通支;仅在腰(牛)或腰,(羊)节段,有斜交通支;荐段有横交通支。在羊和牛的胸段,前后二交通支在多数节段位于肋间动脉起点的后缘;在腰段通常前支在腰动脉之前,后支在其后。前支细,与脊神经腹支的连接点距椎外侧孔或椎间孔较近;后支较粗,与脊神经腹支的连接点距椎外侧孔或椎间孔较远。胸、腰段交通支的分支类型与马和驴的交通支分型相似。更多还原

【Abstract】 By dissecting 8 calves and sheep （3 calves,5 sheep）,the results show that two rami communicantes from each spinal N.in T_1-13 and L_1-3;one ramus communicantis exists in either L_{4 6} or S_1-4（5） （calf）;only obliguus ra- mus is located in L_1-3 （calf） or L_2-5（sheep）,and there is a transversus commu- nicantis in sacral section.In general,the two rami communicantes of the T in sheep and calf are behind the Intercostal Arteries.They are before and after Lhe Intercostal Arteries or the deep and shallow of them.In the L,the ramus ven- tralis is before the lumbar artery and the ramus posterior behind it.Thedistan- ce between the point which the ramus ventralis connects with the ramus vent- rails of nervus spinalis and the foramen intervertebale or the foramen vertebra- le laterle is storler than that of theramus posterior,and the ramus ventralis is simaller than the ramus posterior.The rami communicantes of T or L are clas sified as the horse and donkey.更多还原