. The anatomy of the domestic animals . Veterinary anatomy. THE PEEICABDIXJM AND HEART 743 wUi, ^^ °'l^'' ?^ contact of the pericardium with the chest wall is chiefly ventral, and is best seen muscles) TheT,l^'^,'tpH?f'k ^", ^^is position (after removal of the mtercostal and rectus thorac^ muscles) the aiea is seen to be triangular. The anterior border of the triangle (formed by Xe"^ e^d no'nf ttfthfw ^"^^ f ^^.^"^ "^^^ fourth costal cartilage and extends across the median plane endmg at the third interchondral space near the costo-chondral junction. The right
. The anatomy of the domestic animals . Veterinary anatomy. THE PEEICABDIXJM AND HEART 743 wUi, ^^ °'l^'' ?^ contact of the pericardium with the chest wall is chiefly ventral, and is best seen muscles) TheT,l^'^,'tpH?f'k ^", ^^is position (after removal of the mtercostal and rectus thorac^ muscles) the aiea is seen to be triangular. The anterior border of the triangle (formed by Xe"^ e^d no'nf ttfthfw ^"^^ f ^^.^"^ "^^^ fourth costal cartilage and extends across the median plane endmg at the third interchondral space near the costo-chondral junction. The right border berinf/tTe lpf?pnT^lTv,^ °^ the fourth rib to the eighth chondro-sternal joint. The fef border begins at the left end of the anterior border, crosses the fourth cartilage nearly an inch from its junction with the rib and the fifth and sixth chondro-costal junctions. The heart differs greatly in form and position from that of the larger animals. In diastole it is ovoid and the apex is blunt and rounded. Its long axis is very oblique. Thus the base faces chiefly toward the thoracic inlet and is opposite to the ventral part of the third rib. The apex is on the left side at the sixth inter- chondral space or seventh costal cartilage, and in close relation to the sternal part of the diaphragm. The stemo-costal surface corresponds largely to the floor of the thorax from the fifth chondro-sternal joint backward. It is crossed obliquely Aorta Left pul- monary artery Pulmonary veins Left brachial artery Brachiocephalic artery Anterior venn - cava Right auricle Pulmonary artery Conus arteriosus Right ventricle. Posterior vena cava Left ventricle 1, Pulmonary veins; Apex Fig. 612.—Heart of Dog; Left View. , left auricle; 3, vessels and fat in coronary groove; 4, vessels and fat in left or ventral longitu- dinal groove; o, vessels and fat in intermediate groove. by the left (or ventral) longitudinal groove, which begins behind the origin of the pulmonary artery, and joins the ri
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphiladelphialondon
