. An American text-book of obstetrics. For practitioners and students. Fig. 502.—Left innominate bone: a, b, axis at the ilio-sacral joint upon which the bone rotates when the pubic end is abducted (Wehle). opening of 6 centimeters (2f inches), the conjugata vera gains centimeters(J inch), the transverse centimeters (f inch), and the oblique diameters OBSTETRIC SURGERY. 909 centimeters (1 inch). With a separation of 7 centimeters (2f inches), which ispossible under gentle pressure without laceration of the sacro-iliac ligaments,the gain in the conjugata vera is centimeters (f i
. An American text-book of obstetrics. For practitioners and students. Fig. 502.—Left innominate bone: a, b, axis at the ilio-sacral joint upon which the bone rotates when the pubic end is abducted (Wehle). opening of 6 centimeters (2f inches), the conjugata vera gains centimeters(J inch), the transverse centimeters (f inch), and the oblique diameters OBSTETRIC SURGERY. 909 centimeters (1 inch). With a separation of 7 centimeters (2f inches), which ispossible under gentle pressure without laceration of the sacro-iliac ligaments,the gain in the conjugata vera is centimeters (f inch).. Fig. 503.—Sacrum: ab, ab, axes on which the innominate bones hinge. Owing to the wedge-shape ofthe sacrum, they run from above downward and inward (Wehle). Wehle1 called attention to the fact that when the pubic bones are separatedthe sacro-iliac joints rotate upon an oblique line running from above down-ward and from without inward, and that in consequence the ends of the pubicbones move downward as well as outward when the joint is opened (Figs. 502-
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
