The body is the main weight-bearing region of a vertebra, making up the bulk of the bone’s mass.For example, the fifth lumbar vertebra (which is most inferior one, located beneath the fourth lumbar vertebra) is called the L5 vertebra.Įach vertebra has several important parts: the body, vertebral foramen, spinous process, and transverse process. The vertebrae are named by the first letter of their region (cervical, thoracic, or lumbar) and with a number to indicate their position along the superior-inferior axis. Prior to adolescence, the spine consists of 33 bones because the sacrum’s five bones and the coccyx’s four do not fuse together until adolescence. The spine, also known as the vertebral column or spinal column, is a column of 26 bones in an adult body - 24 separate vertebrae interspaced with cartilage, and then additionally the sacrum and coccyx. ![]() Stretching down the midline of the trunk from the base of the skull to the coccyx, the spine plays an extremely important role in our bodies as it supports the upper body’s weight provides posture while allowing for movement and flexibility and protects the spinal cord.
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