. An American text-book of obstetrics. For practitioners and students. ce between the iliac crests, 29 centimeters; the dis-tance between the greater trochanters, 31 centimeters; the distance betweenthe spinous process of the last lumbar vertebra and the upper margin of thepubic symphysis, or external conjugate, 204; centimeters; the distance betweenthe posterior superior spinous process and the anterior superior spinousprocess of the opposite iliac bone, or the oblique diameter, 22 centimeters;the distance between the ischial tuberosities, 11 centimeters. These externaldiameters, which are re
. An American text-book of obstetrics. For practitioners and students. ce between the iliac crests, 29 centimeters; the dis-tance between the greater trochanters, 31 centimeters; the distance betweenthe spinous process of the last lumbar vertebra and the upper margin of thepubic symphysis, or external conjugate, 204; centimeters; the distance betweenthe posterior superior spinous process and the anterior superior spinousprocess of the opposite iliac bone, or the oblique diameter, 22 centimeters;the distance between the ischial tuberosities, 11 centimeters. These externaldiameters, which are readily obtained by means of direct measurements by thepelvimeter, bear sufficiently constant relation to the internal diameters to makethem of much practical importance. As pointed out by Klein, however, theantero-posterior diameter is subject to considerable normal variation. The aver-age thickness of the bony walls at the points of measurement being known, thesubtraction of this amount from the ascertained external diameter evidently ANATOMY OF THE PELVIS. Plate - tip
Size: 1009px × 2477px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
