@article{oai:niigata-u.repo.nii.ac.jp:00021636, author = {星野, 嘉恵子}, issue = {2}, journal = {新潟医学会雑誌, 新潟医学会雑誌}, month = {Feb}, note = {Nucleolar sizes of the amygdaloid neurons in Nissl preparations from opossum, mole, rat, tupia, bat, cat, howling monkey, woolly monkey, macaque, chimpanzee and human were measured using a computerized image analyzer (Videoplan, Contron). The neurons in lateral (M), intermediate (T') and medial (T) principal subnuclei, central (E) and intercalated (K) subnuclei were examined, resulting in the followings : 1) The increasing order of the width of the nucleolar size distribution in every of these four subnuclei was found to be rat→cat→macaque→chimpanzee→human, which roughly corresponds to the ascending order of mammalian phylogeny. Two different types of this widening feature in nucleolar size distribution were identfied. One (T', T) tends to progressively become composed of separate two, rather homogeneous populations with large and small nucleoli, and the other (M, E) is composed of a whole, heterogeneous population. 2) In the cases of T' and T subnuclei, the ratio of the population with small nucleolei to the whole population was found to increase with the phylogenetic ascent, which seemed to result from the increasement in the population of Golgi 11 type cells. 3) In the cases of M and E subnuclei, the heterogeneity seemed to be largely due to multiplication of the sorts of Golgi II type cells. 4) Contrary to that the functional division of amygdaloid complex into two parts is based on a boundary between intermediate and medial principal subnuclei, these two subnuclei showed marked similarity with each other with respect to nucleolar size distribution and their phylogenetic tendencies. Accordingly, from a phylogenetic viewpoint of neuronal organization, these results suggested that the functional boundary should be redefined between lateral and intermediate principal subnuclei.}, pages = {116--124}, title = {扁桃体亜核の細胞構成 : 比較解剖学的考察}, volume = {105}, year = {1991} }