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1. Parietal peritoneum - supplied segmentally by spinal (intercostal and lumbar) nerves innervating the overlying muscles.

2. Diaphragmatic peritoneum - supplied by the phrenic nerve (C3, 4, 5), hence referred pain from the diaphragm is felt at the tip of the shoulder.

3. Visceral peritoneum has no afferent supply - pain from diseased viscera is due to muscular spasm, tension on mesenteric folds or involvement of the adjacent parietal peritoneum.

4. Mesenteric root - possesses numerous Pacinian corpuscles (mechanoreceptors) which serves a protective function by causing the reflex contraction of abdominal muscles to support the abdominal viscera during jarring movements which may cause undue traction on their attachments


1. Mcminn. (2003). Last's Anatomy. Elsevier Australia. ISBN:0729537528. Read it at Google Books - Find it at Amazon
2. Netter, F. H. (2019). Atlas of human anatomy. Philadelphia, PA: Elsevier.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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