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JAMA. 1890;XV(1):23-24. doi:10.1001/jama.1890.02410270039002.
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Tendon Reflexes.  —At the Ninth Congress of Internal Medicine Dr. Sternberg, of Vienna, read a paper on this subject, based on observations made on 1,500 patients in the clinics of Professor Meynert and Dr. Redtenbacker. The object of the experiments was to determine the "components" constituting the tendon reflexes, that is, the effects produced by shaking of the muscle, the tendons, the bone, etc., and to separate these various phenomena from each other. In this way he succeeded in showing that the so-called tendon reflexes consist of two phenomena, namely: a bone reflex and a pure muscle phenomenon, which, most probably, is also a reflex. The bone reflex consists in the fact that a shock to the bone, particularly in the direction of its longitudinal axis, irritates the nerves of the periosteum and the articular surfaces, and this produces a contraction of all the muscles belonging to the bone. The


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