. Public school physiology and temperance [microform]. Physiology; Nervous system; First aid in illness and injury; Physiologie; Nerveux, Système; Premiers soins. CIRCULATION. 85 artery is provided with half-moon-shaped folds of membrane^ the semi-lunar valves. The blood, having traversed the lungs, collects in the piU- monary veins, and is carried to the left side of the heart, where it is received into the left auricle. This circuit, from the right ventricle through the lungs and back to the left auricle, is called the short or pulmonary circulation. From the left auricle the blood is driven


. Public school physiology and temperance [microform]. Physiology; Nervous system; First aid in illness and injury; Physiologie; Nerveux, Système; Premiers soins. CIRCULATION. 85 artery is provided with half-moon-shaped folds of membrane^ the semi-lunar valves. The blood, having traversed the lungs, collects in the piU- monary veins, and is carried to the left side of the heart, where it is received into the left auricle. This circuit, from the right ventricle through the lungs and back to the left auricle, is called the short or pulmonary circulation. From the left auricle the blood is driven on through an opening in. Fio. 27.—Cross section of the Heart, showing: A, tricuspid .alve; B, mitral valve; C, semi-lunar valves of the pulmonary aj1;ery; D, semi-lunar valves of the aorta. another partition, into the left ventricle. The opening in this partition is also provided with a valve, called the mitral^ because it is shaped like a bishop's mitre. The walls of the left ventricle are nearly three times as thick as those of the right. When the left ventricle con- tracts, the blood is sent into the first artery, the aorta, with sufficient force to carry it to every part of the system. Its return through the various veins, to the right side of the heart, completes the long or body circulation. Semi-lunar. 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 Nattress, William; Ontario. Dept. of Education. Toronto : W. Briggs


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Keywords: ., bookcentury1800, booksubjectnervoussystem, booksubjectphysiology