Go ahead and lay supine and see if you can get your cervical vertebrae and sacrum on the ball simultaneously, with your femur parallel to the floor.
These sit in between your hip bones and the sacrum bone in your lower back.
The spinal column is composed of seven cervical vertebrae, twelve thoracic vertebrae, five lumbar vertebrae, the bony sacrum , and the coccyx.
Giant cell tumor of bone is a rare neoplasm usually seen in the long bones or sacrum .
At the bottom of the spine is a large, solid bone called the sacrum .
In 68% of individuals studied, the division occurs between the fifth lumbar vertebra and the upper border of the sacrum .
In other tetrapods, haemal arches do not begin for several vertebrae posterior to the sacrum .
X rays may show inflammation where the sacrum meets the pelvis.
People who have an aligned sacrum (where the spine meets the pelvis) can keep their legs perpendicular to the floor when they bend, but I couldn't.
The nurse performs a sterile skin prep extending from the patient's lower back area to his or her sacrum and perineum using povidone iodine scrub and paint.