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What is the Function of the Atlas and Axis?

Atlas and Axis Bones

When you think about the atlas and the axis – do you think about world geography? A globe? Or a pair of very important bones?

The first seven vertebrae in the spine make up what is known as the cervical spine. It begins right below the neck and ends where the middle 12 vertebrae, or thoracic spine, begin.

The two uppermost vertebrae at the top of the cervical spine are different from the others in this grouping because they provide the neck with the ability to rotate. The atlas (C1) is the first cervical vertebra; it is located between the skull and the remaining vertebrae of the spine. Directly below the atlas is the axis (C2). Special ligaments link these two vertebrae, allowing a great deal of rotation between them.

When we talk about “head rotation,” we are really referring to the atlas rotating on the axis. These two bones, working in tandem, give your head its ability to turn from side to side.

Because the cervical spine is so flexible, it is quite susceptible to injury. When you hear about whiplash injuries sustained in a car crash, these two vertebrae are often involved. When you stop to consider that this relatively small area of the spine supports the head, it is easy to understand how abrupt head movement could cause damage, let alone a car crash with a violent head jerk!

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Dr. Phillip Asks some important questions of interest to Columbia residents - Chiropractor Columbia Dr. Phillip Asks...

How do you know when you're healthy?
Ask most Columbia residents this simple question and you're likely to hear, "When you feel good" or "When you're at your proper weight for your height" or "When you have lots of energy and vitality." Great answers. But our chiropractic patients know that true health is when your body is working as it was designed. True health is how you function, not how you feel.
Do nerves actually get pinched?
Chiropractors recognize two types of nerve disorders involved in subluxation. The least common is a pinched nerve that diminishes nerve supply to an affected organ or tissue. More common is the irritated nerve (facilitative lesion) which overexcites nerve communications to an affected organ or tissue. Chiropractic care has been shown to help with both types.