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The pelvic inlet is a planar surface that defines the boundary between the pelvic cavity and the abdominal cavity. It is also called the pelvic brim, which is an apple-shaped line formed by the pubic symphysis, the iliopectineal lines and the sacrum.
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, rectum, and ...
The pelvic brim is the edge of the pelvic inlet, an approximately butterfly-shaped line passing through the sacrum, the arcuate and pectineal lines, and the pubic symphysis. It divides the pelvic cavity into the false and true pelvis, and may be a site of compression of structures that pass through the pelvic inlet.
Pelvic outlet is the lower circumference of the lesser pelvis that encloses the inferior aperture. It has three notches formed by the pubic arch, the ischial tuberosities and the sacrotuberous ligaments.
Linea terminalis is the pelvic brim, the edge of the pelvic inlet. It consists of the pubic crest, pectineal line, arcuate line, sacral ala, and sacral promontory.
The hip bone (os coxae, innominate bone, pelvic bone or coxal bone) is a large flat bone composed of three parts: the ilium, ischium, and pubis. It forms part of the pelvis and the hip joint, and undergoes ossification from eight centers.
Pelvimetry is the measurement of the female pelvis, which can theoretically identify cephalo-pelvic disproportion, a condition that may affect childbirth. Learn about the purpose, indication, components, history and normal measures of pelvimetry, as well as the limitations and controversies of this practice.
The pelvis is the lower part of the trunk, between the abdomen and the thighs, that includes the bony pelvis, the pelvic cavity, the pelvic floor, and the perineum. Learn about the structure, development, functions, and variations of the pelvis in humans and other animals.