Pons In the parabrachial nucleus (PB), including KF nucleus and the superior olivary nucleus, several BDA labeled fibres were encounted. The moderate BDA labeled fibres were located in the pontine reticular nucleus (Pn) and facial motor nucleus (VII).

• 脑桥：稀疏的BDA标记纤维和终末见于上橄榄核，臂旁核簇(包括KF核)和面神经核：中等密度的BDA标记纤维终末主要分布在脑桥网状核。