SACRUM Definition & Meaning -

Sacrum Definition & Meaning - Merriam-Webster sacrum The sacrum articulates with four bones; the last lumbar vertebra above via a disc space and facet joint complex, the coccyx below with a ligamentous attachment sacrum The sacrum and coccyx bones sit inferior to the fifth lumbar vertebra They are composed of individual vertebra that usually fuse during

sacrum The sacrum is the large, triangle-shaped bone at the base of the spine Many, though not all, animals with a backbone also have a sacrum