应四川省解剖学会的邀请，美国马利兰大学医学院解剖学和神经生物学系余承思博士于1997年6月24日作了对“味蕾解剖学的新认识”的学术报告。余博士等用低渗的二甲砷酸钠或磷酸缓冲液灌注动物并改变了传统的昧蕾纵切法，而采用横切技术，光电镜下发现大鼠味蕾内部有亮、暗两种细 At the invitation of Sichuan Provincial Anatomy Society, Dr. Yu Chengsi, Department of Anatomy and Neurobiology, School of Medicine, University of Maryland, USA, delivered an academic report on “New Understanding of Taste Bud Anatomy” on June 24, 1997. Yu et al. Perfused animals with hypotonic sodium cacodylate or phosphate buffered saline and changed the traditional method without using the transection technique. Using the crosscutting technique, the light and dark contents of the rat’s taste buds were found under the light microscope