Identifier: anatomydescripti1897gray (find matches)
Title: Anatomy, descriptive and surgical
Year: 1897 (1890s)
Authors: Gray, Henry, 1825-1861 Carter, H. V. (Henry Vandyke), 1831-1897 Pick, T. Pickering (Thomas Pickering), 1841-1919
Subjects: Anatomy Human anatomy Anatomy, Surgical and topographical
Publisher: London : Longmans, Green
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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ted the fact that the first metacarpal bone is oftendevelo)ped from three centres ; that is to say, there is a separate nucleus for the distal end,forming a distinct epiphysis visible at the age of seven or eight years. He also statesthat there are traces of a proximal epiphysis in the second metacarpal bone. Journalof Anatomy, 1869. S 2 26o THE SKELETON External Surface or Dorsum of the Ilium (fig. 231).—The back part of thissurface is directed backwards, downwards, and outwards ; its front part forwards,downwards, and outwards. It is smooth, convex in front, deeply concavebehind; bounded above by the crest, below by the upper border of theacetabulum ; in front and behind, by the anterior and posterior borders. Thissurface is crossed in an arched direction by three semicircular hnes—thesuperior, middle, and inferior curved lines. The superior curved hne, the shortest Fig. 231.—Rig;ht os innominatum. External surface. Crest of ilium Anterior superiorsjnne Anterior ivfericr spive
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Ilio-jjectineal linefor Gimhernats ligament Sjnne of os pubisPonparts liganie Gemellus superiorSpine of ischium Gemellus inferio ^~^~\ I Angle of i •pubisRectwi abdcPyramidt of the three, commences at the crest, about two inches in front of its posteriorextremity ; it is at first distinctly marked, but as it passes downwards and out-wards to the upper part of the great sacro-sciatic notch, where it terminates, itbecomes less marked, and is often altogether lost. Behind this line is a narrowsemilunar surface, the upper part of which is rough and affords attachment topart of the Gluteus maximus; the lower part is smooth and has no muscularfibres attached to it. The middle curved line, the longest of the three, com- OS INNOMINATUM 261 mences at the crest, about an inch behind its anterior extremity, and, taking acurved direction downwards and baclcwards, terminates at the upper part ofthe great sacro-sciatic notch. The space between the superior and middlecurved hues and the crest is c

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