Anatomy and physiology : designed for academies and families . ernal surface, pillars of flesh, named column* columns can be seen upon the interior of the hearts ofdomestic animals. The walls of the left ventricle in the heartin man are much thicker than those of the right, and the sameis true of domestic animals. This is illustrated by comparingthe thickness of the walls of the left side with those of theright side. See Figs. 138, 139, 140, 142. Between the auricle and ventricle, on the right side, thereare three folds of thin, triangular membrane, named the tri- Describe Figs.


Anatomy and physiology : designed for academies and families . ernal surface, pillars of flesh, named column* columns can be seen upon the interior of the hearts ofdomestic animals. The walls of the left ventricle in the heartin man are much thicker than those of the right, and the sameis true of domestic animals. This is illustrated by comparingthe thickness of the walls of the left side with those of theright side. See Figs. 138, 139, 140, 142. Between the auricle and ventricle, on the right side, thereare three folds of thin, triangular membrane, named the tri- Describe Figs. 136,137. How is the risrht side of the heart divided ? Whatis the auricle called by butchers ? How does the auricle differ from theventricle? What have the ventricles upon their internal surface? Whatis situated between the auricle and ventricle of the right side of the heart ? ANATOMY OF THE HEART. 195 cuspid valves. There are seen passing from the floating edgeof these valves to the columnar earneae. small white cords,named the chordae tendinea*. Fig. Fig. 138. A view of the heart with its several chambers, and the vessels in connec-tion with them. 1, The superior vena cava. 2, The inferior vena cava. 3, The rightauricle. 4, The right ventricle. 5, The situation of the tricuspid valves. 6, The par-tition between the two ventricles. 7, The pulmonary artery. 8, The point where itdivides into the right and left pulmonary artery for the corresponding lungs. 9,9, Thefour pulmonary veins, that bring the blood into the left auricle (JO.) 11, The leftventricle. 15, The situation of the mitral valves. 13, The situation of the sigmoidvalves of the aorta. 14, The situation of the sigmoid valves of the pulmonary artery. From the right ventricle the venous blood passes throughthe pulmonary artery to the lungs. At the commencement ofthis artery there are placed three valves, called the sigmoid,or semi-lunar valves of the pulmonary arteries. Between the auricle and ventricle of the le


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Keywords: ., bookcentury1800, bookdecade1840, booksubjectanatomy, bookyear1847