Truncus vagalis posterior

The Truncus vagalis posterior is a parasympathetic nerve branch of the vagus nerve that arises from the plexus esophagus . First, it is the right vagus nerve, which runs along the esophagus on the right side of the esophagus, along with the left vagus nerve on the left. Due to the rotation of the stomach in the course of embryonic development, the right vagus nerve tends to pull backwards and thus becomes the Truncus vagalis posterior (lat. Posterior for "back"); the left vagus nerve tends to pull forward and become the anterior vagal trunk . Both trunci exchange fibers to a large extent, so that the truncus vagalis posterior also contains fibers of the left vagus nerve. For the most part, however, it still consists of fibers from the right vagus nerve.

Together with the esophagus finally enters the vagal trunk posterior through the esophageal hiatus (passage opening of the diaphragm for the esophagus) therethrough and then splits: The smaller part of the nerve fibers forming the Ramus gastricus and pulls the stomach , where it meets the plexus gastricus forms . The larger part forms the Ramus celiacus and contributes to the formation of the plexus celiacus .

literature

• Friedrich Anderhuber, Franz Pera, Johannes Streicher (Hrsg.): Waldeyer - Anatomie des Menschen . Textbook and atlas in one volume. 19th edition. Walter de Gruyter, 2012, ISBN 978-3-11-022862-5 , p. 534 .
• Michael Schünke , Erik Schulte , Udo Schumacher : Prometheus. Learning atlas. Internal organs . 2nd revised and expanded edition. Thieme, Stuttgart 2009, ISBN 978-3-13-139532-0 , p. 167, 274 .