. A treatise on anatomy, physiology, and hygiene : designed for colleges, academies, and families. y process. 465. The lungs are conical organs, one on each side ofthe chest, embracing the heart, (fig. 88,) and separated fromeach other by a membranous partition. The color of thelungs is a pinkish gray, mottled, and variously marked withblack. Each lung is divided into lobes, by a long and deep 463. AVhat fluids are conveyed into the right cavities of the heart ?What is necessary before they can be adapted to the wants of the body ?By what organs are these changes effected ? 464—474. Give the a
. A treatise on anatomy, physiology, and hygiene : designed for colleges, academies, and families. y process. 465. The lungs are conical organs, one on each side ofthe chest, embracing the heart, (fig. 88,) and separated fromeach other by a membranous partition. The color of thelungs is a pinkish gray, mottled, and variously marked withblack. Each lung is divided into lobes, by a long and deep 463. AVhat fluids are conveyed into the right cavities of the heart ?What is necessary before they can be adapted to the wants of the body ?By what organs are these changes effected ? 464—474. Give the anatomyof the respiratory organs. 464. Name the respiratory organs. What organsalso aid in the respiratory process ? 465. Describe the * 210 ANATOMY, PHYSIOLOGY, AND HYGIENE. fissure, which extends from the posterior surface of the upperpart of the organ, downward and forward, nearly to theanterior angle of the hase. In the right lung, the upper lobeis subdivided by a second fissure. This lung is larger andshorter than the left. It has three lobes, while the left hasonly two. Fig. Fig. 89. A back view of the heart and lungs. The posterior walls of the chest areremoved. 1, 2, 3, The upper, middle, and lower lobes of the right lung. 8,9,10, Thetwo lobes of the left lung. 6, 13, The diaphragm. 7, 7, 14, 14, The pleura that linesthe ribs. 4,11, The pleura that lines the mediastine. 5,12,12, The portion of thepleura that covers the diaphragm. 15, The trachea, 16, The larynx. 19, 19, Theright and left bronchia. 20, The heart. 29, The lower part of the spinal column. Explain fig. 89. ANATOMY OF THE RESPIRATORY ORGANS. 211 466. Each lung is enclosed, and its structure maintained,by a serous membrane, called the pleura, which invests it asfar as the root, and is thence reflected upon the walls of thechest. The lungs, however, are on the outside of the pleura,in the same way as the head is on the outside of a cap doubledupon itself. The reflected pleurae in the middle of th
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