Sacrum (Noun)
Meaning
Wedge-shaped bone consisting of five fused vertebrae forming the posterior part of the pelvis; its base connects with the lowest lumbar vertebra and its tip with the coccyx.
Classification
Nouns denoting body parts.
Examples
- The sacrum serves as a base for the spinal column and forms the back of the pelvis, where it connects with the hip bones.
- A curvature of the sacrum has been detected in many cases of chronic lower back pain in adults.
- This part of the spine, specifically the sacrum, has been found to bear significant amounts of stress and strain during the weight-bearing activities we do on a daily basis.
- In a typical spine, the lumbar vertebrae above the sacrum have a marked forward curvature.
- During pregnancy, the sacrum and pelvic joints undergo significant changes that prepare the pelvis for childbirth.