Anatomy of accessory organs of the sympathetic nerve

In 1901, E. Zttckerkandl described in humans new, previously unknown organs that are permanent formations for embryos and newborns, and called them, due to their close topographic and genetic relationship to sympathicus, additional organs of the latter - Nebenorgane des Sympathicus.
 The data of Zuckerkandl's work, based on the study of these organs in 37 fetuses and 27 newborns, are summarized as follows. Accessory organs of the sympathetic nerve in newborns are small bodies, in most cases two, located behind the peritoneum, symmetrically on both sides of the art. mesent, inf., in the sympathetic plexus of the abdominal aorta, adjacent to its wall. The shape of these bodies is elongated, somewhat narrowing towards the ends, flattened from front to back.