Inferior mesenteric ganglion

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The ganglion mesentericum inferius (in animals referred to as ganglion mesentericum caudale ) is a sympathetic ganglion (nerve cell node) in the lower (in animals: posterior) abdominal cavity . It is located at the exit of the artery of the same name from the aorta and represents a prevertebral ganglion ( ganglion prevertebrale ).

The cell bodies of the sympathetic neurons are located in the lumbar region of the spinal cord , their neurites (nerve processes) pass through the border cord and are only switched to the now post- synaptic , secondary neurons in the inferior mesenteric ganglion . These second neurons form a network around the artery, the inferior mesenteric plexus (animals: caudal mesenteric plexus ).

The vegetative nerve fibers with the blood vessels pull from this network to the distal sections of the intestine, where they influence the enteric nervous system . From the inferior mesenteric ganglion arises either directly or via a net-like formation ( superior hypogastric plexus ) often paired existing hypogastric nerves , which in the sympathetic control of many pelvic organs is involved.

See also

Peristalsis - Celiac ganglion - Super mesenteric ganglion

literature

  • Franz-Viktor Salomon: nervous system, systema nervosum . In: Salomon et al. (Ed.): Anatomy for veterinary medicine . Enke Stuttgart, 2nd ext. 2008 edition, ISBN 978-3-8304-1075-1 , pp. 464-577.