There are a number of potential causes of cervical vertigo, though this condition is still being researched. Blockage of arteries in the neck from hardening (atherosclerosis) or tearing of these arteries (dissection) are causes. The dizziness is caused in these cases by a disruption of blood flow to the inner ear or to a lower brain region called the brain stem. Arthritis, surgery, and trauma to the neck can also block blood flow to these important regions, resulting in this type of vertigo.
Cervical spondylosis (advanced neck osteoarthritis) may be another potential cause of neck-related dizziness. This condition causes your vertebrae and neck disks to wear and tear over time. This is called degeneration, and it can put pressure on the spinal cord or spinal nerves and block blood flow to the brain and inner ear. A slipped disk alone (herniated) can do the same thing without any spondylosis.
The muscles and joints in your neck he receptors that send signals about head movement and orientation to the brain and vestibular apparatus — or parts of the inner ear responsible for balance. This system also works with a larger network in the body to maintain balance and muscle coordination. When this system works improperly, receptors can’t communicate to the brain and cause dizziness and other sensory dysfunctions.