All About the Sacrum and Coccyx

All About the Sacrum and Coccyx sacrum SACRUM definition: 1 a triangle-shaped bone at the base of the lower back above the coccyx (= a small bone at the… Learn more 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 a wedge-shaped piece of bone directly below the lumbar spine It is made of five fused vertebrae numbered s1 through s5 These five vertebrae are

sacrum The sacrum is made up of 5 vertebral bones and might be the weirdest of all the vertebrae As the right side of the sacral base goes into nutation, the sacrum moves anteriorly and inferiorly on the right as it rotates to the left along an oblique axis