Abstract
The results of a two- and three-dimensional study of the content of perikarya and proximal branches from neurons in the rat lateral geniculate body are reported. Techniques for the serial sectioning procedure and the serial analysis are outlined. The two neurons analysed three-dimensionally were elliptoid, multipolar with modified bipolarity, uninucleated, uninucleolated and uniciliated with a variety of organelles dispersed in the cytoplasm. Most organellesvariety of organelles dispersed in the cytoplasm. Most organelles were quantitatively analysed with respect to morphological dimensions. The cellular membranes were of particularly impressive dimensions. An almost complete, quantitatively integrated, structural view at the organelle level is given for the analysed parts of the neurons. Mitochondria, Golgi complexes and cytoplasmic dense bodies were abundant in the middle of the perikarya, while α-cytomembranes and free ribosomes had their highest concentrations at the poles of the perikarya. Also, mitochondria and cytoplasmic dense bodies were observed in relatively high concentrations in the proximal branches. The results are evaluated and discussed in relation to technique, conventional two-dimensional analysis and some biochemical data available for similar parts of neurons.
Published Version
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