Question

lo 3.5. on the posterior surface, running down the midline, is the ______ ____ ______, a bumpy ridge that is the remnant of the fused spinous processes
superior lumbar crest
median sacral crest
transverse sacral crest
median dorsal crest
anterior sacral crest

Explanation:

The median sacral crest is located on the posterior surface, running down the mid - line and is the remnant of the fused spinous processes. The other options do not match this description. The superior lumbar crest is not related to this location and description. The transverse sacral crest is not along the mid - line. The median dorsal crest is not the correct term for this structure in the sacral region. The anterior sacral crest is on the anterior surface.

Answer:

B. Median sacral crest