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Anatomy of the Spine. The normal anatomy of the spine is usually described by dividing up the spine into three major sections: the cervical, the thoracic, and the lumbar spine. (Below the lumbar spine is a bone called the sacrum, which is part of the pelvis). Each section is made up of individual bones, called vertebrae. There are 7 cervical vertebrae, 12 thoracic vertebrae, and 5 lumbar vertebrae. An individual vertebra is made up of several parts.
Every single rib is attached to its respective vertebrae, which are the bones that connect together to form the vertebral column, more commonly called the spinal column. There are a total of 33 vertebrae in a human spine, or backbone, which is divided into cervical, thoracic, lumbar, sacral, and coccygeal sections.he first seven ribs on either side of the body connect to the sternum via their respective costal cartilage. The eighth, ninth, and tenth ribs attach to the sternum indirectly. Their costal cartilage connects to the preceding rib's costal cartilage, while the last two ribs do not attach to the sternum at all.