Ultrastructure of cells and synapses in the parvocellular portion of the Cebus monkey lateral geniculate nucleus

Autor:	Jorge Pecci Saavedra, T.A. Reader, O. L. Vaccarezza
Rok vydání:	1968
Předmět:	Histology Histological Techniques Geniculate Bodies Dendrites Haplorhini Cell Biology Anatomy Biology Lateral geniculate nucleus Axons Pathology and Forensic Medicine Microscopy Electron Parvocellular cell Synapses Ultrastructure Animals Magnocellular cell Neuroglia Neuroscience
Zdroj:	Zeitschrift f�r Zellforschung und Mikroskopische Anatomie. 89:462-477
ISSN:	1432-0878 0302-766X
DOI:	10.1007/bf00336173
Popis:	The ultrastructural study of the Cebus lateral geniculate nucleus shows the existence of a complex synaptic organization in which several synaptic types are recognized: a) axosomatic; b) simple axodendritic; c) glomeruli. Three main synaptic contacts were found in the glomeruli: 1. axodendritic 1, between central terminals and primary and secondary dendrites; 2. axodendritic 2, between peripheral terminals and dendrites and 3. axoaxonic, between central and peripheral terminals. At the axoaxonic junctions, the central are presynaptic to the peripheral terminals. Elliptical vesicles fill the peripheral terminals. These findings are discussed in relation with a) previous results of other authors in primates and cats; b) previous neurophysiological and pharmacological evidences for the existence of chemical synapses in the lateral geniculate nucleus; c) the possible functions of axoaxonic synapses.
Databáze:	OpenAIRE
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