JAMES STEVENSON / SCIENCE PHOTO LIBRARY JAMES STEVENSON / SCIENCE PHOTO LIBRARY
Pelvis & spine. View of the spine and pelvis of a human skeleton. The spine is a column of 33 roughly cylindrical bones called vertebrae. Between each vertebra is a disc shaped pad of cartilage. At top of image, seven cervical vertebrae support the skull. The 12 thoracic vertebrae are below this, each of these supports an attached rib (not seen). The lumbar spine is 5 vertebrae that support the lower back, and take most of the strain when lifting. At the bottom the sacrum consists of 5 fused vertebrae that connect to the pelvic bone. The pelvic bone protects & supports abdominal organs.
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