Vol 68, No 4 (2009)
Original article
Published online: 2009-11-26
The first appearance of sympathetic ganglia in human embryos at stage 13
Folia Morphol 2009;68(4):215-217.
Abstract
The primordia of the sympathetic trunk ganglia were traced on serial sections
of 10 embryos at stage 13 (32 postovulatory days). It was found that in all
embryos, these primordia were present in the thoracic level T4 to T9 and they
appeared as scattered aggregates of cells lying dorsally and laterally to the
dorsal aortae.
Keywords: human neuroembryologyautonomic nervous systemsympathetic ganglia
