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17273. Anatomical terms of bone. [edit on Wikidata] The lower circumference of the lesser pelvis is very irregular; the space enclosed by it is named the inferior aperture or pelvic outlet. It is an important component of pelvimetry.
This is also called the obstetric anteroposterior diameter of the pelvic outlet, to distinguish from the anatomic one which includes the coccyx. [7] However, the coccyx is normally pushed away during childbirth by laxity in the sacrococcygeal joint. [8] 9.5 to 11.5 cm. [6] Intertuberous diameter Axial plane
Female pelvis. The pelvic cavity is a body cavity that is bounded by the bones of the pelvis. Its oblique roof is the pelvic inlet (the superior opening of the pelvis). Its lower boundary is the pelvic floor. The pelvic cavity primarily contains the reproductive organs, urinary bladder, distal ureters, proximal urethra, terminal sigmoid colon ...
The pelvic inlet or superior aperture of the pelvis is a planar surface which defines the boundary between the pelvic cavity and the abdominal cavity (or, according to some authors, between two parts of the pelvic cavity, called lesser pelvis and greater pelvis). It is a major target of measurements of pelvimetry.
The same human pelvis, front imaged by X-ray (top), magnetic resonance imaging (middle), and 3-dimensional computed tomography (bottom). The pelvis (pl.: pelves or pelvises) is the lower part of an anatomical trunk, [1] between the abdomen and the thighs (sometimes also called pelvic region), together with its embedded skeleton [2] (sometimes also called bony pelvis or pelvic skeleton).
Structure. The pelvic brim is an approximately butterfly-shaped line passing through the prominence of the sacrum, the arcuate and pectineal lines, and the upper margin of the pubic symphysis. The pelvic brim is obtusely pointed in front, diverging on either side, and encroached upon behind by the projection forward of the promontory of the sacrum.
16580 16585, 16580. Anatomical terms of bone. [edit on Wikidata] The hip bone (os coxae, innominate bone, pelvic bone[1][2] or coxal bone) is a large flat bone, constricted in the center and expanded above and below. In some vertebrates (including humans before puberty) it is composed of three parts: the ilium, ischium, and the pubis.
Perineal membrane. Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front. (Inferior layer labeled at bottom left.) Median sagittal section of male pelvis, showing arrangement of fasciæ. (Inferior layer labeled at center left.) The perineal membrane is an anatomical term for a fibrous membrane in the perineum.