. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . n expiration; the full lines below, in forced inspira-tion. It will be noticed that the excursion of the diaphragm on the right side is shorter than on theleft. The heart during forced inspiration moves more to the right than normal, because the right lungexpands less than the left. (Cut one-third life size.) The heart is not able to sink into the lung tissue as deeply as convalescence from pneumonia on one side, the heart may havean


. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . n expiration; the full lines below, in forced inspira-tion. It will be noticed that the excursion of the diaphragm on the right side is shorter than on theleft. The heart during forced inspiration moves more to the right than normal, because the right lungexpands less than the left. (Cut one-third life size.) The heart is not able to sink into the lung tissue as deeply as convalescence from pneumonia on one side, the heart may havean unusual lateral movement in deep inspiration, owing to the unequalexcursion of the respective sides of the diaphragm. In one of my patients, Mabel L. (Fig. 171), the movement of the dia- 290 THE ROENTGEN RAYS IN MEDICINE AND SURGERY phragm on the right side was centimetres and on the left side5 centimetres, and the distance between the left border of the heart inexpiration and inspiration was 3 centimetres. This point will be betterunderstood by comparing this tracing with Fig. 75 (Gertrude S.),page 102, in which the heart moves


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