. Diseases of the heart and arterial system; Designed to be a practical presentation of the subject for the use of students and practitioners of medicine. Fig. to.—Relative Dulness in a Case ofPrimary Tricuspid Eegurgitation. 352 DISEASES OF THE HEART. Fig. 71.—Uelative Dllness in Case ofTricuspid Eeoukgitation, SecondaryTO Dilatation of the Right Ventricle. (Fig. 70) than -when regurgitation takes place as a result of ven-tricular dilatation (Fig. 71). On the other hand, in either form (if the affection, dulness isgreatly increased over theright auricle and the largevenous trunks, reaching fa
. Diseases of the heart and arterial system; Designed to be a practical presentation of the subject for the use of students and practitioners of medicine. Fig. to.—Relative Dulness in a Case ofPrimary Tricuspid Eegurgitation. 352 DISEASES OF THE HEART. Fig. 71.—Uelative Dllness in Case ofTricuspid Eeoukgitation, SecondaryTO Dilatation of the Right Ventricle. (Fig. 70) than -when regurgitation takes place as a result of ven-tricular dilatation (Fig. 71). On the other hand, in either form (if the affection, dulness isgreatly increased over theright auricle and the largevenous trunks, reaching farbeyond the right sternal bor-der, half-way or more to theright mamillary line. In mostinstances also there is increaseof cardiac dulness to the left,depending upon the natureand extent of the accompany-ing disease of the left heart. Auscultation.—This fur-nishes even less trustworthydata than are obtained by per-cussion. There is generallya blowing, systolic murmur,said to have its maximum in-tensity in the tricuspid area (Fig. 72) ; yet as the dilatation ofthe several cardiac chambers alters the normal relations of theparts, this murmur may beheard most distinctly in anyone of several situations. Itmay be at the junction of thefifth and s
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