Fine structure of the glial cells in the inferior ganglion of the vagus nerve in human embryos and fetuses.
Basing on electron microscopy the glial cells within the inferior ganglion of the vagus nerve may be recognized during 7th and 8th week. The satellite cells and lemmocytes are of similar structure and they differ as to location within the ganglion. During development the ratio of satellite cells to nerve cells changes and in 23rd week 4-8 glial cells surrounding single neuron are observed. The cytoplasm of glial cells is more electron dense than that of nerve cells and the nucleus is always oval or triangular. Cellular organelles are less numerous in comparison with nerve cells.
Bruska
M
M
Department of Anatomy, Academy of Medicine, Poznań.
D005314:Embryonic and Fetal Development / Q000502:physiology; D005726:Ganglia, Parasympathetic / Q000196:embryology* / Q000648:ultrastructure*; D006801:Humans; D009457:Neuroglia / Q000648:ultrastructure*; D014630:Vagus Nerve / Q000196:embryology* / Q000648:ultrastructure*