Transactions . nsolida-tion, a knowledge of these bounds is of much valuein arriving at a diagnosis in those diseases. It istrue that those very diseases vary the position ofthe separation between the lobes; yet that veryvariation is characteristic. Inferior Posterior Bounds of Lungs.—The inferiorposterior bounds of both lungs are just behind thejunctions of the twelfth ribs to the vertebras, andpass directly outwards and forwards. Trachea.—The trachea (diagrams 7 and 13) atits bifurcation, as it lies to the right of and pos-terior to the arch of the aorta, is behind theright side of the stern
Transactions . nsolida-tion, a knowledge of these bounds is of much valuein arriving at a diagnosis in those diseases. It istrue that those very diseases vary the position ofthe separation between the lobes; yet that veryvariation is characteristic. Inferior Posterior Bounds of Lungs.—The inferiorposterior bounds of both lungs are just behind thejunctions of the twelfth ribs to the vertebras, andpass directly outwards and forwards. Trachea.—The trachea (diagrams 7 and 13) atits bifurcation, as it lies to the right of and pos-terior to the arch of the aorta, is behind theright side of the sternum at its junction with thesecond right costal cartilage, and is behind andin front of (the oesophagus being interposed) therisrht side of the bodies of the fifth and sixth dorsalvertebras. (Diagram 7.) Corresponding with thisposition of the trachea, the respiratory sounds,especially the expiratory murmurs, are louder and OF THE INTERNAL ORGANS. 321 4.—ORGANS HEALTHY. BOV POULTER, AGED 9, DlED FROM FEVER,. I. Right lung; I. Left luug.—2. Lower boundary of the pericardial sac; 2\ Outline of the pericardial sac after it was distended by six ounces of water 4. Vena cava—7. Liver—8. Stomach 9. Spleen 10-10. Kidneys. Weight of Organs—Heart, 3j* ounces ; right lung, G\ ditto; left lung, b\ditto ; liver, 23 ditto ; spleen, 8 ditto ; right kidney, 3 ditto ; left kidney, 3£ ditto. Pericardium artificially distended ; spleen large. 322 ON CHANGES IN THE SITUATION clearer to the right of the sternum and vertebrae,than to the left. (Diagram L.* 2.) In a healthywoman, the subject of this diagram, the expiratorymurmur, which could not be heard to the left ofthe sternum, was perfectly clear to the right. Heart; its Central Attachment.—The heart isattached to its place, in relative position to thelungs, by the veins supplying the left auricle ; theseveins issue from each lung at about an equal dis-tance from the centre of the left auricle, which isin front of the sixth and sev
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