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Promontory
Other Terms: Promontorium (Os sacrum), Promontory of sacrum, Promontorium ossis sacri
Description
The promontory of the sacrum forms as the ventral lip of the first sacral segment projects ventrally into the pelvis forming the distinct sacrovertebral angle. This is the posterior delimiting margin of the pelvic inlet.
Etymology
Promontory comes from the Latin verb prominere meaning to jut out.
Latin
Promontorium ossis sacri
