Ultrastructure of the taste bud of the human fungiform papilla
Ultrastructure of the taste bud of the human fungiform papilla
复制标题
人类菌状乳头味蕾的超微结构
作者：
N. Paran;C. F. Mattern;R. Henkin
对人菌状乳头的味蕾进行了电子显微镜观察。典型的I型、II型和III型细胞以及带有神经末梢的接触部位被发现。接触I型和II型细胞的神经纤维中的小泡表明这些细胞可能接受传出冲动，而与(传入)神经纤维相邻的III型细胞中的小泡和颗粒支持III型细胞是感觉受体的观点。所有这些特征与之前在其他哺乳动物的菌状味蕾中报道的特征几乎没有区别。
SummaryThe taste bud of the human fungiform papilla was examined by electron microscopy. Typical type I, type II, and type III cells were found along with contact sites with nerve endings. Vesicles in nerve fibers contacting type I and type II cells suggest that these cells may receive efferent impulses, whereas vesicles and granules in type III cells adjacent to (afferent) nerve fibers support the view that type III cells are sensory receptors. All of these features are virtually indistinguishable from those previously reported in fungiform taste buds of other mammals.