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Development of blood vessels in the sympathetic trunk ganglia of the chick embryo during their histomorphogenesis.

The development of the vascular patterns and the differentiation of the cellular components have been studied in the ganglia of the sympathetic trunk in chicken embryos from the 3rd to the 16th day of incubation. The time and the mode of formation of the extrinsic and intrinsic vascular networks seem to conform to the pattern of growth and differentiation of the nerve cells and to their distribution within the sympathetic ganglia.