The parietal peritoneum is innervated by somatic nerves

4 Q. Which of the following statements are true?

• 1. The parietal peritoneum is innervated by somatic nerves

  2. The parietal peritoneum is innervated by autonomic nerves.

  3. Pain originating in the parietal peritoneum is poorly localised.

  4. Pain from the parietal peritoneum may radiate.

Ans: 1 & 4

The parietal peritoneum is innervated by the relevant somatic nerves through the spinal nerves in the distribution of the overlying dermatomes. Pain is well localised to the site of inflammation. Pain from parietal peritoneal inflammation may radiate along the line supplied by the somatic nerve, as in acute cholecystitis when the pain radiates to the back.