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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.

How Your Back WorksC³mo funciona la espalda

How Your Back Works

A healthy back allows you to bend and stretch without pain. The spine has three natural curves, which keep your body balanced. Strong, flexible muscles support your spine. Soft, cushioning disks separate the hard bones of your spine, allowing it to bend and move.

Image of spine

The Parts of the Spine

  • The vertebrae are the 24 bones that make up the spine.

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

  • Each of these bones has a canal that runs top to bottom. Together these canals form a tunnel called the spinal canal.

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

  • Running through the canal are nerves.

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

  • Disks serve as cushions between vertebrae. A disk's soft center absorbs shock during movement.

Image of vertabrae and disk
Two vertebrae and a disk

Image of muscles

The Supporting  Muscles

Strong, flexible muscles help maintain your three natural curves. They hold your spine in proper alignment. This helps support your upper body. Strong stomach, buttock, and thigh muscles help take the strain off your back.

Publication Source: American Academy of Family Physicians

Publication Source: North American Spine Society

Publication Source: SpineHealth.com

Online Source: American Academy of Family Physicians

Online Source: North American Spine Society

Online Source: SpineHealth.com

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

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

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Dr. Hannon and his wife, Dr. Mary Hannon, recently had the great privilege of returning to the Holy Family Surgery Center in Honduras...
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From the first interview/evaluation through the surgery and follow ups, I have felt taken care of and in excellent, professional and kind hands. Dr. Hannon is a remarkable man, a spectacular teacher as well as surgeon. He patiently answered every question and concern in the most understandable, apprehendable way. An excellent care giver and a gifted surgeon.
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Contact Us: 99 N La Cienega, Suite 304, Beverly Hills, CA 90211 •Phone: 310-362-3099 •Fax: 424-355-0555