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The author has been studying abdominal pain for many years and has incorporated in this small volume his views, which from time to time have appeared in English periodicals. He does not accept Mackenzie's theory of viscerosensory and visceromotor reflex. After reviewing the theories of Lenander, Ross, Kappis and Hurst he accepts certain ideas suggested by Lenander and Hurst and states that had Mackenzie realized the difference between splanchnic and somatic pain he would not have adopted his theory of viscerosensory reflex. "The discovery of the peculiar nature of the adequate stimulus for afferent autonomic nerves affords strong presumptive evidence against Mackenzie's theory." The author believes, as Hurst showed years ago, that there is a true visceral pain which is the result of abnormal tension on the splanchnic afferent nerve endings in the muscular wall of the hollow viscera. This pain, however, is only vaguely localized in the abdomen. There
Abdominal Pain. JAMA. 1931;97(16):1172–1173. doi:10.1001/jama.1931.02730160054033
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