Transactions . of aortic regurgitation,where the vessel rises with a rapid bound andfalls back with a sudden jerk ; and it is also seenwhere the artery is unusually distended, as in caseswhere there is an undue and over-abundant supplyof arterial blood to the head. Besides this arterialpulse that is occasionally seen in the neck, wehave another, a venous pulsation, that is almostinvariably visible. Jugular Pulsation.—The deep jugular veins liebeneath the sterno-cleido muscles, when joined bythe subclavian veins they pass into the chest justbehind the junction of the sternum and clavicle.(Diagr
Transactions . of aortic regurgitation,where the vessel rises with a rapid bound andfalls back with a sudden jerk ; and it is also seenwhere the artery is unusually distended, as in caseswhere there is an undue and over-abundant supplyof arterial blood to the head. Besides this arterialpulse that is occasionally seen in the neck, wehave another, a venous pulsation, that is almostinvariably visible. Jugular Pulsation.—The deep jugular veins liebeneath the sterno-cleido muscles, when joined bythe subclavian veins they pass into the chest justbehind the junction of the sternum and clavicle.(Diagrams 15 and 20.) There is a constant visiblepulsation, both in these and in the superficialjugular veins, which pulsation, though perfectlyvisible, cannot be felt. The veins are most distended OF THE INTERNAL ORGANS. .331 0.—HEALTHY ORGANS—(Side View.) Showing also the change in form of the Costal Wall that effects a deep Inspiration. John Egan, aged 23, Patient of Mr. White; Ulcers of Intestines and 1. Left lung ; la. Left lung after being fully inflated 2. Lower boundary of the pericardium; 2a. Right ventricle ; 26. Left ventricle ; 2d. Mitral valve 8. Stomach—9. Spleen; 9. Situation of spleen after the lungs were inflated 10. Kidney ; 10. Kidney, after inflation of the lungs. The continuous lines indicate the seat and form of the ribs and scaleni before thelungs were inflated. The interrupted lines indicate the seat of the ribs and scaleniafter the lungs were inflated. 332 ON CHANGES IN THE SITUATION during the systole, when the blood is sent with thegreatest energy by the contraction of the ventriclesthrough the arteries and capillaries along the the same time, the contraction of the right ven-tricle prevents its reservoir, the right auricle, fromdischarging itself, so that the auricle and the leading to it, the veins, become after the ventricular contraction thecavity of the right ventricle becomes flaccid, thecontents
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