Lateral curvature of the spine and round shoulders . in certain occu-pations, and to right-handedness. Thealmost constant occurrence of the curveindicates a common cause, which ismost probably aortic pressure. Theasymmetry extends from the fifth dor-sal to the second or third lumbar ver-tebra. The body of the fifth dorsal ver-tebra is flattened on the left side, andthe discs above and below are similarlyaffected. There is a groove from i3^ to2 cm. broad passing downward in a spiral direction, following the course of the aorta, to the anteriorsurface of the second or third lumbar vertebra. The
Lateral curvature of the spine and round shoulders . in certain occu-pations, and to right-handedness. Thealmost constant occurrence of the curveindicates a common cause, which ismost probably aortic pressure. Theasymmetry extends from the fifth dor-sal to the second or third lumbar ver-tebra. The body of the fifth dorsal ver-tebra is flattened on the left side, andthe discs above and below are similarlyaffected. There is a groove from i3^ to2 cm. broad passing downward in a spiral direction, following the course of the aorta, to the anteriorsurface of the second or third lumbar vertebra. The discs betweenthese vertebrae are usually less projecting than the others, and ifthe cutting away of the vertebra cannot be seen the flattening ofthe disc is always apparent.^ PELVIC INCLINATION The position of the pelvis in relation to the horizontal planewould be of importance in relation to scoliosis and faulty attitude ifit could be accurately measured in the living subject. 1 Pere: Les courb. lat. norm du Rachis humaine, These de Toulouse, Fig. 16.—Section of the SpineOF A New-born Infant. 24 ANATOMY OF VERTEBRAL COLUMN AND THORAX If the front part of the pelvis is lowered and the back part cor-respondingly tilted up it is spoken of as increased inclination of thepelvis. If the front part is raised and the back part lowered it isspoken of as diminished inclination. With the former is asso-ciated an increase of the lumbar physiological curve, and with thelatter a flattening of it. Changes in inchnation of the pelvis must eiRL I/a YRS Sitting- Front -7^C -^ Standing .7^C .4L 4THL.
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