. Lateral curvature of the spine and round shoulders . centimeters broad passing downward in a spiraldirection, following the course of the aorta, to the anterior surface ofthe second or third lumbar vertebra. The discs between these verte-bras are usually less projecting thanthe others, and if the cutting awayof the vertebra cannot be seen theflattening of the disc is always ap-parent.^ PELVIC position of the pelvis inrelation to the horizontal plane is ofimportance in relation to scoliosisand faulty attitude because it mustvary from the normal with everyvariation from the nor
. Lateral curvature of the spine and round shoulders . centimeters broad passing downward in a spiraldirection, following the course of the aorta, to the anterior surface ofthe second or third lumbar vertebra. The discs between these verte-bras are usually less projecting thanthe others, and if the cutting awayof the vertebra cannot be seen theflattening of the disc is always ap-parent.^ PELVIC position of the pelvis inrelation to the horizontal plane is ofimportance in relation to scoliosisand faulty attitude because it mustvary from the normal with everyvariation from the normal of thebody in the upright position. Ifthe front part of the pelvis is low-ered ald the back part correspond-ingly tilted up it is spoken of asincreased inclination. If the front part is raised and the back part lowered it is spoken of asdiminished inclination. With the former is associated an increaseof the lumbar physiological curve and with the latter a flattening of it.« ^ Pere: Les courb. lat. norm du Rachis humaine, These de Toulouse, Fig. 17.—Female Pelvis, Median Sec-tion.—(Spalteholz.)The solid line running up and back from the symphysis indicates the external conjugate diameter. l8 ANATOMY or \KRTEBRAL COLUMN AND THOR.\X. Changes in inclination of the pelvis form an important element in thefaulty attitude to be spoken of as round shoulders, but have been to acertain extent overlooked. The internal or true conjugate diameter (conjugata vera) of the pelvis is aline from the sacrolumbar junction to the top of the symphysis pubis and is gen-erally accepted as the line by which pelvic inclination is to be determined. Theangle which this line makes with the horizon when the patient stands erect is spokenof as the angle of pelvic inclination, and the observers do not wholly agree intheir results, which are as follows: Average in Men. Average in Women. Year 1745, Mtiller 45 degrees Year 1825, Nagele^ 60 Year 1836, Weber Brothers 65-degrees Year 1841, Krause^ 60
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