What Is The Atlas of the Spine?
The atlas is a small special vertebra at the top of the spine. It supports the skull, which on average weighs about the same as a bowling ball. The spinal cord passes through the atlas and communicates with the rest of the body. The vertebral arteries pass through the sides of the Atlas and supply the back 1/3 of the brain with blood.
When all is in alignment, there is little to no stress to the joints and discs below. There is no nerve irritation, and there is normal blood flow through the vertebral arteries to the brain and brainstem.