[An electron microscopic study of the quantitative characteristics of the neuronal and synaptic architectonics of the central and lateral nuclei of the amygdaloid body in the rat brain].

Some fine structural features of neurons and synapses in the central and lateral nuclei of rat's amygdala have been described. Neurons of the central nucleus are comparatively alike, but neurons of the lateral nucleus are distinguished by size, form and distribution of cell organelles. Different varieties of axonal profiles in both the nuclei are described. The axonal profiles are distinguished by quantity, form and localization of vesicles, presence or absence of an active zone, localization of profiles on different parts of neurons--soma, spines, fine dendrites and shafts. The axo-dendritic synapses were investigated quantitatively.