In addition, progesterone, produced in large quantities to sustain pregnancy leads to some softening of spinal bones and supporting ligaments. (infobaby.org)
Spinal bone loss in post-menopausal women supplemented with calcium and trace minerals. (ericbakker.com)
Spina bifida involves a defect of the backbone and spinal cord that prevents spinal bones from fusing together as they should as a fetus grows. (sciencedaily.com)