File:A practical treatise on medical diagnosis for students and physicians (1904) (14777025323).jpg

Identifier: practicaltreatis1904muss2 (find matches)
Title: A practical treatise on medical diagnosis for students and physicians
Year: 1904 (1900s)
Authors: Musser, John Herr, 1856-1912 Pancoast, Henry
Subjects: Diagnosis Diagnosis, Radioscopic Diagnosis
Publisher: Philadelphia and New York : Lea
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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nervousconnections. The central representative orcentre is influential in proportionto the power and activity of itsperipheral adjunct, and is, more-over, influenced by the higher,psychical centres, which it in turnmodifies. It influences or modifieslower centres—(1) functional, (2)vasomotor, (3) motor, and (4) sen-sory. The result of this mech-anism in the case of the stomachis: 1. That functional alterationor organic disease of (a) the gas-tric centre, or (b) of centres ofhigher control, or (c) of the nervethat connects the centre and theorgan—pneumogastric nerve—produces gastric symptoms. 2.That gastric diseases produce re-flex symptoms in other organs, ascardiac palpitation. 3. That dis-ease of other organs produces gas-tric symptoms or disease ; instancethe vomiting of pregnancy, of i renal calculus, or of disease of the I testicle, and the gastritis of kidney i disease. Thus vomiting is caused J by emotion (higher centre) influencing thiby a tumor pressing upon or destroy*
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Showing the innervation of the digestivisystem. pneumogastric (lower centre);g the pneumogastric centre;or by a tumor, such as an aneurism, pressing on the pneumogastric 1012 DISEASES OF THE STOMACH. nerve. I have taken the simplest illustrations. When we come to thestudy of gastric neuroses, the extraordinary influence of the nervousmechanism will be appreciated ; and when hysteria is studied, the phys-iology of its extreme gastric symptoms will be recognized. When themechanism and clinical course of vomiting are studied, it will be foundamong other causes to be frequently due to affections of the blood, thepoisons of which irritate either cerebral centres or nerve-plexuses in thestomach. Vascular Mechanism. Gastric diseases also arise because of somedisturbance in the vascular supply. Thus in heart disease with venousstasis the gastric veins become the seat of congestion, with consequentgastric catarrh ; and hepatic disease causes portal congestion and gastriccatarrh. 3. Functional

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