Courbure latérale de la colonne vertébrale et les épaules rondes . gham, 70 à 73 cm. ; Morris, 70 cm. ; et Krause, 72 à 75 cm.(le long des courbes), qui est de 45  %, de la longueur du corps. Therelative longueur de la régions distinctes est illustré dans le followingtable ^Cunningham : D wight ! Morris^ ^^^ Beaunois^^^ Femmes région cervicale 13-140111. 12,5 cm. 10,8 cm. 13,3 cm. 12.1cm. Région dorsale 27-29 cm. 27,5 cm. 27,0 cm. 28,7 cm. 26,5 cm, région lombaire 12-15 cm. 17,5 cm. 16,8 cm. 19,9 cm. 18,7 cm. Il est souvent affirmé que la longueur de la colonne vertébrale dans différents en-individus est assez constant, mais Dwights figu

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Lateral curvature of the spine and round shoulders . gham, 70 to 73 cm.; Morris, 70 cm.; and Krause, 72 to 75 cm.(along the curves), which is 45 per cent, of the body-length. Therelative length of the separate regions is shown in the followingtable: D wight ^Cunningham! Morris^ Beaunois ^^^^^^ Females Cervical region 13-140111. 12.5 cm. 10.8 cm. 13.3 cm. 12.1cm. Dorsal region 27-29 cm. 27.5 cm. 27.0 cm. 28.7 cm. 26.5 cm, Lumbar region 12-15 cm. 17.5 cm. 16.8 cm. 19.9 cm. 18.7 cm. It is frequently stated that the length of the spine in different in-dividuals is pretty constant, but Dwights figures show rather a wide ^ Cunningham: Text-book of Anatomy, Macmillan, 1902.2 Morris: Human Anatomy, Blakiston, 1903.^Dwight: Medical Record, Sept. 8, 1894. ANATOMY 9 variation. In fifty-six male spines the longest was 69.8 cm. and theshortest 56.4 cm. In a straight line, the column measures in men from 66 to 70 cm., and in women from 66 to 69 cm., with an average of 67 cm. (Krause).This height is approximately 40 per cent, of the total height of the. Fig. I.—The Spine Seen from theSide, Showing the PhysiologicalCurves.— {Warren Museum.) Fig. 2.—^The Spine Seen from theFront.—{Warren Museum.) individual. In the fetus and young child the column forms a greaterproportion of the body-length. At puberty the more rapid growthof the rest of the body overtakes that of the spine, which completesits growth between the ages of twenty-three and thirty-one years.The percentage of total length of the individual occupied by the lO ANATOMY OF VERT;EBRAL COLUMN AND THORAX spine without the sacrum is given for different ages by Moser asfollows: Age Body-length ^f^^^li^^ trlt^olnLlT ^^^^^^ body-length o 50 19-2 38.4 3 86. 31.7 36.8 S----- 112 35 30 II 138 41 29.7 14 152 44 28.9 }5H 162 45 28.1 Adult 167 57 34.1 The spine is divided into three regions corresponding to the partsof the trunk with which it is connected: (i) The cervical region; (2)the thoracic or dorsal region; (3) the lumbar

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