. A catechism of natural theology. Natural theology; Anatomy. 164 CIRCULATION OF THE BLOOD. Fig. 31. A view of the heart, showing its resemblance to a fire engine. C. B, A, C, D, the four rooms in the heart, b, a, c, d, four principal veins and arteries conveying the blood to and from the heart, —(the dotted lines representing the course.) bt a vein bringing the blood from the body into B, the first receiv- ing room, called the right auricle; whence it passes into A. the first forcing room, termed the right ventricle.—A small valve is represented playing over the orifice, and opening into the
. A catechism of natural theology. Natural theology; Anatomy. 164 CIRCULATION OF THE BLOOD. Fig. 31. A view of the heart, showing its resemblance to a fire engine. C. B, A, C, D, the four rooms in the heart, b, a, c, d, four principal veins and arteries conveying the blood to and from the heart, —(the dotted lines representing the course.) bt a vein bringing the blood from the body into B, the first receiv- ing room, called the right auricle; whence it passes into A. the first forcing room, termed the right ventricle.—A small valve is represented playing over the orifice, and opening into the forcing room, to prevent the return of the blood, exactly as in the fire engine, a, the artery by which the blood is thrown into the lungs, e, the valve opening into this artery, and preventing the return of the blood, the same as in the en- gine. —Again— c, a vein by which the blood is returned from the lungs, and de- livered into C, the second receiving room, called the left au- ricle ; whence it passes into D, the second forcing room, term- ed the left ventricle ; and hence into d, the great artery which distributes it over the body. The valves—the same as in the other rooms. N. B. The situations, shapes and dimensions of the different parts are not exactly observed in the figure. In the heart, the auricles B, C, have more than one vein. The valves are also differently shaped from those in the figure. But the leading principles are seen; sufficient to show that, in construction, the heart is literally a double fire Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nichols, I. (Ichabod), 1784-1859. Boston : W. Hyde
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Keywords: ., bookcentury1800, booksubjectanatomy, booksubjectnaturaltheology
