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Welcome to our health education library. The information shared below is provided to you as an educational and informational source only and is not intended to replace a medical examination or consultation, or medical advice given to you by a physician or medical professional.

Anatomy of a Normal SpineAnatom­a de una columna vertebral normal

Anatomy of a Normal Spine

The spinal column is a stack of bones (vertebrae) that are separated by soft pads of tissue (disks). Each of these bones has a canal that runs top to bottom. Together these canals form a tunnel called the spinal canal. Running through this canal are nerves. These nerves carry signals between the brain and body.

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The spine has three natural curves: the cervical, the thoracic, and the lumbar.

The Parts of the Spine

  • The vertebrae are the 24 bones that connect like puzzle pieces to make up the spine.

  • The lamina of each vertebra forms the back of the spinal canal.

  • A foramen is a small opening. This is where a nerve leaves the spinal canal.

  • The transverse process is the wing of bone on either side of each vertebra.

  • The spinous process is the part of each vertebra you can feel through your skin.

  • A disk lies between each of the vertebrae.

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Two vertebrae with a disk between them

Date Last Reviewed: 2007-01-15T00:00:00-07:00

Date Last Modified: 2002-07-09T00:00:00-06:00

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“It’s been a year since Mom’s surgery, and I wanted to send some pictures to show you how great she’s doing. In October, she went to Ft. Walton Beach, FL , with my brother and sister-in-law. She truly enjoyed herself. In December, she and I flew to Seattle, WA, to visit our cousins.

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