What Is the Atlas Vertebra? 5 Facts About the Bone at the Top of Your Spine: Atlas Chiropractic and 4 More Fort Wayne Offices

The atlas vertebra, also called C1, is the first bone of your spine. It sits directly beneath your skull and connects your head to the rest of your body. It’s small, unusually shaped, and responsible for more of your daily movement than most people realize. Below are five facts about the atlas, followed by five Fort Wayne chiropractic offices, starting with Atlas Chiropractic, a practice built around care for this bone.

1. Atlas Chiropractic
2. Charge Health and Chiropractic
3. Chestnut Hills Chiropractic Center
4. Summit Family & Sports Chiropractic
5. Advanced Chiropractic Life Center

What should you know about the atlas vertebra?

Why is it called the atlas?

The atlas is named after the Titan Atlas from Greek mythology, who was condemned to hold up the heavens. The bone does a similar job for your head, which weighs roughly 10 to 12 pounds in the average adult. Every time you stand, sit, or walk, the atlas carries that weight and transfers it down the neck. Anatomists count it as the first of seven cervical (neck) vertebrae, labeled C1 through C7.

How is the atlas shaped differently from other vertebrae?

The atlas is a ring of bone with no vertebral body, the thick, drum-shaped block that bears weight in every other vertebra. It also lacks a spinous process, the bony bump you can feel along the back of your spine. Instead, it has a front arch, a back arch, and two thick side sections called lateral masses. The skull rests on these lateral masses. During development, the tissue that would have become the atlas’s body fuses to the vertebra below, the axis (C2), and forms a peg called the dens.

What movements does the atlas control?

The atlas is involved in two separate motions. The joint between the skull and the atlas, the atlanto-occipital joint, lets you nod your head up and down. The joint between the atlas and the axis, the atlanto-axial joint, lets you turn your head side to side. The atlas pivots around the dens at that second joint. Roughly half of your neck’s total rotation happens at this single level, which is why a stiff upper neck can make shoulder checks while driving feel so difficult.

What passes through the atlas?

The ring of the atlas surrounds the spinal cord just below the point where it meets the brainstem. A strong band called the transverse ligament holds the dens against the front arch, so the dens can’t press backward into that space. The vertebral arteries, which supply blood to the back of the brain, also pass through small openings on each side of the atlas and curve along its back arch before entering the skull. Because so much sits in so little space, doctors take injuries at this level seriously.

Can the atlas be injured or shifted out of position?

Yes. The best-known atlas injury is the Jefferson fracture, a break in the ring usually caused by a heavy blow to the top of the head, such as diving into shallow water. It’s named after Sir Geoffrey Jefferson, the British neurosurgeon who described it in 1920. Car accidents and falls can strain the ligaments around C1 without breaking bone. Upper cervical chiropractors also look for smaller changes in the atlas’s position relative to the skull and the axis. Anyone with neck pain after a crash or fall should get a medical evaluation and imaging first.

Where can you get care focused on the upper neck in Fort Wayne?

Chiropractic offices use different techniques, so ask each one how it evaluates the upper neck.

Atlas Chiropractic

Atlas Chiropractic is an upper cervical practice at 5113 N Bend Dr in southwest Fort Wayne, led by Dr. Emily Staples, DC, a NUCCA chiropractor. NUCCA care centers on the atlas vertebra itself. After a complimentary consultation, Dr. Staples takes digital images to measure how the atlas sits relative to the skull and the rest of the neck. Those measurements guide a gentle, hand-delivered correction with no twisting or popping. She often takes follow-up images to confirm the atlas moved as intended. Once the alignment holds, visits are usually brief. People commonly come in for headaches, neck and shoulder tension, dizziness, jaw discomfort, and posture concerns. Appointments can be booked online.

Charge Health and Chiropractic

Charge Health and Chiropractic is a chiropractic office on the west side of Fort Wayne.

Chestnut Hills Chiropractic Center

Chestnut Hills Chiropractic Center is a chiropractic practice in west Fort Wayne.

Summit Family & Sports Chiropractic

Summit Family & Sports Chiropractic is a chiropractic office in the Waynedale area of Fort Wayne.

Advanced Chiropractic Life Center

Advanced Chiropractic Life Center is a chiropractic practice in southwest Fort Wayne.

Why does the atlas matter to you?

The atlas is a small ring of bone that holds up your head, handles much of your neck’s rotation, and protects the spinal cord and key arteries. Its position influences how the rest of your neck moves and carries weight. If you’ve noticed upper neck stiffness, head tilt, or tension at the base of your skull, schedule an evaluation that looks closely at this area. Bring any past imaging with you.