On the development of the sympathetic chain and the adrenal medulla in the mouse

摘要: The first visible primordia of the sympathetic chain appear in anterior thoracic region and run caudally through 8 segments an embryo 11 gestation days. At 12 days trunk reaches from base skull into sacral region. During following develops ganglia with interganglionic fibers. 16 there is a well developed cranial ganglion cervicale superior stellatum part In remaining are segmentally arranged but this common pattern large differences noticed. 13th day signs adrenal medulla splanchnic plexus form sympathoblasts ventral to chain. migration cortex goes on for 3 while splancnic mesenchym lateral aorta at least 2 more