鸡脑桥内神经核团的形态学研究

The morphological studies of nerve nuclear in pons of chickens

试验利用 3只白来杭鸡脑制成的冰冻切片 ,经Nissl法染色 ,光镜观察分布于脑桥内的神经核团位置、形态及细胞组成。结果表明 :中央上核位于中脑内 ;三叉神经运动核划分为内侧亚核和外侧亚核 ;三叉神经感觉主核前极在三叉神经运动核前极近平面 ;上橄榄核为一单一圆形核团 ;桥外侧核划分为两个亚核 ;首次观察到鸡脑桥中存在面神经副核 ;尾侧线形核、桥吻侧网状核、桥尾侧网状核、展神经核、耳蜗神经核、前庭神经核群等核团与前人观点一致。

white chicken brains were used in this experimental to observe the morphology and cell components of nerve nuclear in pons by frozen section and Nissls staining in light microscopy. The results were as follows: 1) The supra-central nuclear was in the mesencephalon. 2) The motor nuclear of trigeminal nerve was divided into medial and lateral sub-nuclear. 3) The sensor nuclear of trigeminal nerve was above its motor nuclear. 4) The superior olivaris nuclear was a single round nuclear. 5) The pons lateral nuclear was divided into two sub-nuclear. 6) The facial nerve nuclear was first observed in pons of chicken. 7). The caudal linear nuclear,proximal and caudal linear nuclear,abducentis nerve nuclear,cochlear nerve nuclear and vestibular nerve nuclear were similar with the former studies.