Why do we get referred pain?

I was reading about this the other day and understand the difference between visceral and somatic innervation, but don't understand how this theory with dermatomes relates to periumbical somatic referral in appendicitis. Why is a whole dermatome not affected?

Authored By Hannah Pickford on Tuesday 20th November 2012

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Miss Luna Ibrahim
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Medical Student - Warwick
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Posted over 7 years ago

From Chapter 4 of Bonica's Management of Pain 3rd edition (January 15, 2001): By John D. Loeser (Editor), Steven H. Butler (Editor), C. Richard Chapman (Editor), PhD Dennis C. Turk (Editor) By Lippincott Williams & Wilkins Publishers

&q

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Hannah Brotherstone
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Core / Specialist / Gp Trainee - Royal Devon & Exeter Hospital Wonford
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Posted over 7 years ago

I'm not an embryologist... And I think the other answers before mine were much more informed than I can be. But. I think the important thing here is not to over think this.

Dermatomes and myotomes are important in establishing where a lesi

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Helen Breen
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Medical Student - Queens Belfast
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Posted over 7 years ago

My understanding of this phenomenon is that the referred pain in appendicitis is related to the embryological origin of the three sections of the gastrointestinal system: foregut (oesophagus to 2nd part of duodenum, plus liver, spleen etc), midgut (2nd

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