Health knowledge : a thorough and concise knowledge of the prevention, causes, and treatments of disease, simplified for home use . The surface marking of the left lung corresponds to that of theright as far as the fourth costal cartilage, when it passes outwardalong the lower border of the cartilage to a point about an inchand a half from the margin of the breast-bone; it then is directedobliquely downward to the fifth costal cartilage and turns in-ward to the upper border of the sixth costal cartilage, forming alarger notch; it then follows the same direction as on the other side. The lungs
Health knowledge : a thorough and concise knowledge of the prevention, causes, and treatments of disease, simplified for home use . The surface marking of the left lung corresponds to that of theright as far as the fourth costal cartilage, when it passes outwardalong the lower border of the cartilage to a point about an inchand a half from the margin of the breast-bone; it then is directedobliquely downward to the fifth costal cartilage and turns in-ward to the upper border of the sixth costal cartilage, forming alarger notch; it then follows the same direction as on the other side. The lungs are molded to the walls of the chambers in whichthey are situated, the outer aspects receiving the impressions ofthe ribs, while the under aspects are hollowed by the right lung, in its inner aspect, is molded by the heart, whichcauses a slight depression in front. The left lung in its inneraspect has a deep depression in front molded by the heart, thebulk of which is, of course, on the left side. The left lung has in its substance deep fissures, and the right Front View of the Lungs. IflO ANATOMY AND PHYSIOLOGY. Back View ofthe Lungs. lung has also a secondary fis-sure running horizontally fromthe middle of the greater fissure to the inner border of the lung; thus the left lung is divided into two and the right into three lung is attached on its inner aspect to the wall of the pleural cavity, at the root, where the blood-vessels (pulmonary arteries and veins), bronchi, lymphatics, and nerves enter and leave its substance. The terminal branches of the bronchi end in irregular passages, from the sides of which go off the air-sacs. The blood in these capillaries is thus only separated from the air in the air-sacs by the light framework of thewalls of the capillaries. THE URINARY SYSTEM The urinary system comprisesthe kidneys, which secrete theurine; the ureters, a pair oftubes along which the urinepasses from the kidneys to thebladder; the bladder, a rese
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectmedicin, bookyear1920
