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October 31, 1891


JAMA. 1891;XVII(18):691-692. doi:10.1001/jama.1891.02410960029008

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There is no more common symptom of disease, with the possible exception of pain, than vomiting. It occurs in such a variety of conditions both general and local, and is, withal of such importance in the differential diagnosis of many morbid conditions, that clear ideas of the mechanism of its production are a desideratum. Our standard works on physiology present some rather wide discrepancies. Foster says that the varying impulses presented in the act of vomiting may best be considered as starting from a centre located in the medulla, near the respiratory centre. Landois and Sterling state that the centre for the movements concerned in vomiting lie in the medulla oblongata. Mills says that the vomiting centre is usually located in the medulla; he believes, however, that the doctrine of centres in its present form, especially with such precise limitations physiologically and anatomically, cannot be maintained. In this matter, he

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