. Elementary physiology . Fig. 19. -Adult male pelvis seen from before, in the erect attitude of the body. (Allen Thomson.) \ I, 2, anterior of the iliac crests ; 3, 4, acetabula; 5, 5, thyroid foramina ; 6, subpubic angle or arch. When the ligaments and muscles attached to the pelvis are present, it forms a basin-shaped cavity, the floor of which supports to a certain extent the contents of the abdominal cavity {abdominal viscera). Each hip-bone {os innominaticni) is originally formed from three distinct bones, which persist in youth but become fused together in the adult (eighte

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. Elementary physiology . Fig. 19. -Adult male pelvis seen from before, in the erect attitude of the body. (Allen Thomson.) \ I, 2, anterior of the iliac crests ; 3, 4, acetabula; 5, 5, thyroid foramina ; 6, subpubic angle or arch. When the ligaments and muscles attached to the pelvis are present, it forms a basin-shaped cavity, the floor of which supports to a certain extent the contents of the abdominal cavity {abdominal viscera). Each hip-bone {os innominaticni) is originally formed from three distinct bones, which persist in youth but become fused together in the adult (eighteenth to twentieth year). The three bones are named iliiun, ischium, and p^dns respectively ; the ilium is the upper and larger part of the bone which articulates with the sacrum and extends down to form part of the acetabulum; the pubis lies in front, and unites with its fellow to form an arch {tJie pubic arch); the ischium is the lower

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Keywords: ., bookcentury1800, bookdecade1890, bookpubli, booksubjectphysiology