. Human and comparative anatomy, physiology, and hygiene . (Figs. 28, 29, 39, 40.) Q. How is the human body supplied with blood ? THE HEART.* 116. The heart inclines to the left side of the chest,and is placed between the lungs. The point of theheart is directed downward, and rests on the diaphragm.(Fig. 50.) Q. Where is the heart placed 1 Upon what does it rest ?• 117. The heart is enclosed in a firm membrane calledper-i-cardi-um, (heart case.) (Fig. 35.) Q. What encloses the heart 1 118. The substance of the heart is a mass of flesh, * Illustrate this lesson by usinjj the hearts of animals,
. Human and comparative anatomy, physiology, and hygiene . (Figs. 28, 29, 39, 40.) Q. How is the human body supplied with blood ? THE HEART.* 116. The heart inclines to the left side of the chest,and is placed between the lungs. The point of theheart is directed downward, and rests on the diaphragm.(Fig. 50.) Q. Where is the heart placed 1 Upon what does it rest ?• 117. The heart is enclosed in a firm membrane calledper-i-cardi-um, (heart case.) (Fig. 35.) Q. What encloses the heart 1 118. The substance of the heart is a mass of flesh, * Illustrate this lesson by usinjj the hearts of animals, birds, and fisheswith outline diagrams and the blackboard. (Sec Preface.) THE HEART. 51 so arranged as to form two sides and four cavities.(Fig. 36.) Q. Of what is the heart composed 1 How is it arranged? 119. The two upper cavities are called auri-cles,(deaf ears.) The two lower cavities are called vcntri-cles. Thus we have a right and left auricle, and a rightand left ventricle. (Fig. 36.) Q. What are the cavities of the heart called 1 Describe Fig. 36. *m#?
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectanatomycomparative
