title: An ultrastructural and morphometric study of pre- and post-hatching satellite cells in lumbar sensory ganglia of Gallus gallus domesticus L.
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.
authors.affiliation: Department of Anatomy, São Paulo University, Brasil.
authors.forename: C A
authors.initials: CA
authors.lastname: Ferraz de Carvalho
authors.forename: C F
authors.initials: CF
authors.lastname: da Silva
mesh_terms: D000375:Aging; D000818:Animals; D002642:Chick Embryo; D002645:Chickens / Q000033:anatomy & histology*; D005614:Freeze Fracturing; D005727:Ganglia, Spinal / Q000196:embryology / Q000254:growth & development* / Q000648:ultrastructure; D008854:Microscopy, Electron