Hot water bottle relieves pain of abdominal spasm by:: (A) Stimulation of adrenergic fibers, (B) Stimulation of cholinergic fibers, (C) Inhibition of cold receptors, (D) Inhibition of heat receptors
Answer is A. Hot water bottle relieves abdominal pain through stimulation of adrenergically activated A delta and C fibres, there by blocking pain impulses transmitted through visceral C fibers. Ref: The Journey to Pain Relief : A Hands-On Guide to Breakthroughs in Pain Treatment By Phyllis Berger, Page 76; The Neurobiology of Pain : Symposium of the Nohern Neurobiology Group, Page 232; The Human Nervous System : Structure and Function By Charles Robe Noback, Page 171.