promontory of the sacrum


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sa·cral prom·on·to·ry

[TA]
the most prominent anterior projection of the base of the sacrum.

promontory of the sacrum

[prom′əntôr′ē]
Etymology: L, promontorium, headland
the superior projecting part of the sacrum at its junction with the L5 vertebra.

promontory of the sacrum

The anterior projecting portion of the pelvic surface of the base of the sacrum. With the fifth lumbar vertebra, it forms the sacrovertebral angle.
See also: promontory