What Is the Atlas?
Atlas is the first cervical vertebra, located at the top of the neck beneath the skull. This ring-shaped bone supports the head and connects with the second cervical vertebra. Its joints allow nodding and contribute to upper-neck movement. In chiropractic care, an atlas adjustment refers to a targeted adjustment involving this area.
Quick Facts About Atlas
Category
Cervical vertebra
Used for
Head support and upper-neck movement
Common confusion
The atlas is one vertebra, not the whole neck
Also called
C1 vertebra, First cervical vertebra
Often discussed with
Chiropractic Adjustment
Key Takeaways About Atlas
- The atlas has a ring-like structure without a typical vertebral body.
- Its joints help produce nodding and upper-neck movement.
- Atlas does not mean the entire cervical spine.
How Atlas Works

Atlas refers to the uppermost neck vertebra and its relationship with the skull and the next vertebra. Its broad ring surrounds the upper spinal canal, while paired joints help distribute head weight and guide movement. The atlas works with the axis to support controlled motion between the skull and neck.
Related glossary terms: Cervical Spine, Joint Mobilization, Spinal Cord.
During a chiropractic adjustment, the clinician assesses the upper neck through the health history, physical examination, and movement findings. The adjustment applies a specific manual contact to a joint or nearby spinal structure, with the goal of addressing restricted motion. Atlas-focused care does not describe a separate bone outside the cervical spine, and the term does not identify a diagnosis by itself.

From the Advanced Injury Care Clinic team
When we assess the atlas area, we review the person’s history, posture, neck movement, and examination findings together. We identify whether the upper cervical joints show restricted motion before considering a chiropractic adjustment. Our team also considers nearby structures, since upper-neck symptoms can involve more than one region.
Atlas in Practice: A Real-World Example
A person with limited upper-neck movement may receive an examination that includes the atlas region. If the findings support an adjustment, the chiropractor applies a targeted technique and reassesses movement afterward.
Related Services
Related Terms
Cervical Spine
Cervical Spine is the upper section of the vertebral column located in the neck. It supports…
Joint Mobilization
Joint Mobilization is a hands-on technique that applies controlled, gentle movement to a joint and its…
Spinal Cord
The spinal cord is a long bundle of nervous tissue that connects the brain with nerves…
Chiropractic Subluxation
Chiropractic Subluxation is a chiropractic term for altered joint motion or alignment that may affect how…
Advanced Injury Care Clinic
Have Questions About Atlas?
Contact Advanced Injury Care Clinic for practical guidance on Atlas and related chiropractor work in Hermitage.
