Anatomy and physiology : designed for academies and families . iaphragmare not generally understood, and as this is attended withinjurious effects in the application of clothing, attention isinvited to figs. 118, 119, and 120. It will be seen that theribs are attached to the bodies of the vertebrae, and that they What mode9 are recommended for judicious exercise of the lungs ? Whatwill be the effect upon the blood if the movements of the ribs and diaphragmare restricted ? Show how the blood is imperfectly oxydated by restrictingthe movement of the ribs and diaphragm. 15 170 ANATOMY AXD FUTSIOL
Anatomy and physiology : designed for academies and families . iaphragmare not generally understood, and as this is attended withinjurious effects in the application of clothing, attention isinvited to figs. 118, 119, and 120. It will be seen that theribs are attached to the bodies of the vertebrae, and that they What mode9 are recommended for judicious exercise of the lungs ? Whatwill be the effect upon the blood if the movements of the ribs and diaphragmare restricted ? Show how the blood is imperfectly oxydated by restrictingthe movement of the ribs and diaphragm. 15 170 ANATOMY AXD FUTSIOLOGY. pass obliquely around the chest, and make their attachmentmuch lower at the anterior than at the posterior extremity;and also that the central, curved portion of the ribs is lowerthan even their anterior extremity. As such is the relationof the ribs to the vertebrae and sternum, the latter cannot beelevated while the spinal column is stationary, without ele-vating the anterior extremity of the ribs, which elevationenlarges the thoracic cavity. Fig. Fig. 119. C, Four of the vertebra?, to which are attached three ribs, (7, 7, 7,) withtheir intercostal muscles, 8, 8. These ribs, in their natural position, have their anteriorextremity at (4,) while the posterior extremity is attached to the vertebra (6). 1, 1,and 2, 2, Two parallel lines, within which the ribs lie in their natural position. If theanterior extremitv of the ribs be elevated from 4 to 5. they will not lie within the line2, 2. but will reach to the line. 3, 3. If two bands extend from 1, 1, to 2, 2, they willeffectually prevent the elevation of the ribs from 4 to 5, as the line 2, 2, cannot bemoved to 3, 3. The lower boundary of the thoracic cavity is formed bythe diaphragm. This is attached at its margins to the lowerextremity of the sternum, the cartilages, and extremities ofthe seven lower ribs, and to some of the lumbar diaphragm is convex on its upper surface, and extendsinto the cavity of
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectanatomy, bookyear1847
