Pelvic inlet
Plane representing the boundary between the pelvic and abdominal cavities / From Wikipedia, the free encyclopedia
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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.
Pelvic inlet | |
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Details | |
Identifiers | |
Latin | apertura pelvis superior |
TA98 | A02.5.02.008 |
TA2 | 1289 |
FMA | 17272 |
Anatomical terms of bone |
Its position and orientation relative to the skeleton of the pelvis is anatomically defined by its edge, the pelvic brim. The pelvic brim is an approximately apple-shaped line passing through the prominence of the sacrum, the arcuate and pectineal lines, and the upper margin of the pubic symphysis.
Occasionally, the terms pelvic inlet and pelvic brim are used interchangeably.