Cardinal points
The four points in the pelvic inlet toward one of which the occiput of the baby is usually directed in case of head presentation: two sacroiliac articulations and the two iliopectineal eminences corresponding to the acetabula, six points of a compound optical system: the anterior focal point, the posterior focal point, the two principal points, and the two nodal points.
Cardinal points The four points in the pelvic inlet toward one of which the occiput of the baby is usually directed in case of head presentation: two sacroiliac articulations and the two iliopectineal eminences corresponding to the acetabula, six points of a compound optical system: the anterior focal point, the posterior focal point, the two..
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