An ultrastructural and morphometric study of pre- and post-hatching satellite cells in lumbar sensory ganglia of Gallus gallus domesticus L |
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Authors: | C A Ferraz de Carvalho C F da Silva |
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Institution: | Department of Anatomy, S?o Paulo University, Brasil. |
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Abstract: | An electron microscopic study of satellite cells in the sensory lumbar ganglia from 12 pre- and post-hatching stages of Gallus gallus domesticus L., between the 5th and 120th d, was undertaken. A combined light and electron microscopic morphometric analysis was made in 10 and 18 d embryos and in 8, 35, 61, and 120 d post-hatching specimens. RER, SER, Golgi complex, mitochondria, free ribosomes, cell expansions, pinocytotic vesicles, subsurface cisternae and adhering, gap, and tight junctions are described from the different stages considered. Although a continuous increase in nuclear and cytoplasmic volumes is observed, there is a tendency towards a decrease in the cytoplasm/nucleus and nerve cell/satellite cell volume ratios. |
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