蟾蜍听感受器向延脑的传入投射──HRP顺行追踪法的研究

AFFERENT PROJECTIONS OF AUDITORY RECEPTOR ORGANIZATION IN TOADS

本文将辣根过氧化物酶（HRP）溶液注入蟾蜍的内耳囊．对蟾蜍听感受器向延脑的传入投射进行了研究，结果表明，蟾蜍内耳发出的听神经上行投射到延脑的背侧第八神经（DMN），DMN分化为两个亚核，即背侧听核（DMd）和尾核（DMC）．DMN为蟾蜍听觉上行传导通路的第一级换元站．

Afferent projections of auditayr receptor organization in toads sere studied with the method of HRP: The results show that the perpheral acoustic nerve fibers in toads terminate on the dorsal inedullary nucleus (DMN). The dorsal medullary nuleus has two subnucleus:dorsal medullary nucleus, dorsal acoustic nuceus (DMD)and dorsal medUllary nucleus, nucleus caudalis (DMc ). The dorsal medullary nucleus is the first relay nudeus of auditory pathway in toads.