The bony landmark of the sacrum that makes up the lateral surface and articulates with the ilium is called the

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The auricular surface is the bony landmark of the sacrum that makes up the lateral surface and articulates with the ilium. The ala is another term for the wing-like processes on the sides of the sacrum. The superior articular process refers to the bony projections on the superior portion of the sacrum that articulate with the fifth lumbar vertebra. The pelvic surface of the sacrum is the concave surface that forms part of the pelvic cavity.

The Bony Landmark of the Sacrum That Makes Up the Lateral