• The Barrow Neuroplex
  • Find a Doctor
  • International Patients
  • Contact Us
  • Patients & Families
  • Education
  • Research
  • Departments & People
  • News & Stories
  • Transfer a Patient
  • Spine Program

    Spine Experts in Phoenix, Arizona

    Spinal Anatomy

    Your spine consists of a column of individual bones called vertebrae. Your vertebrae extend from the base of your skull to your tailbone. They vary in size and shape depending on where in the spine they are located.

    Vertebrae are separated by intervertebral discs made of a soft material called collagen. Intervertebral discs act as shock absorbers, cradling your spinal vertebrae and allowing them to move and flex.

    Segments of the Spine

    The spine itself is divided into several segments.

    Cervical Spine

    The cervical spine consists of the seven vertebrae in your neck. Because of the great degree of flexibility here, the occurrence of arthritic conditions and disc disease is quite high.

    Thoracic Spine

    The thoracic spine begins where the ribs insert into the vertebrae and ends at the bottom of the rib cage. It contains 12 vertebrae.

    Lumbar Spine

    The lumbar spine consists of 5 or 6 vertebrae. The sacrum comprises the fused bones that attach to the bones of the hip. The final segment, the coccyx, is commonly known as the tailbone. The sacrum and coccyx usually contain no disc material.

    Disorders of the Spine

    Disorders of the spine can affect the vertebrae, the intervertebral discs, or the spinal cord and spinal nerves.

    • Arthritis is the most common disease of the spine, and it affects the bony joints in the cervical and lumbar spinal segments.
    • Stenosis is caused by overgrowth of vertebrae or ligaments and can cause the spinal cord or the nerves that exit the spinal cord to become compressed.
    • A herniated disc describes an intervertebral disc that has been pushed out of its normal alignment. Herniated discs can cause pain or neurological symptoms when they exert pressure on the spinal cord or spinal nerves.
    • Other disorders, including tumors and infections, can also affect the spine nearly anywhere.

    Find a Spine Specialist

    Get in touch with one of our spine and back pain experts

    How can we help?

    Request an appointment, sign up for a class or support group, and stay in touch

    About Barrow Neurological Institute
    Since our doors opened as a regional specialty center in 1962, we have grown into one of the premier destinations in the world for neurology and neurosurgery. Our experienced, highly skilled, and comprehensive team of neurological specialists can provide you with a complete spectrum of care–from diagnosis through outpatient neurorehabilitation–under one roof. Barrow Neurological Institute: Discover. Educate. Heal.