Learn about spinal anatomy and how various conditions can cause pain and discomfort.
Cervical Spine Anatomy Video

Cervical Spine Anatomy Video

The cervical region of the spine (neck) consists of seven vertebrae. Learn how the spinal discs function and how various conditions can cause neck pain and/or radiating pain.
Lumbar Spine Anatomy Video

Lumbar Spine Anatomy Video

Learn how the lumbar spinal discs function and how lower back conditions can cause back pain and/or radiating pain.
Illustration highlighting the c1 c2 vertebrae in the cervical spine.

Spinal Motion Segment: C1-C2 (Atlantoaxial Joint) Animation

The C1 C2 spinal motion segment, also called the atlantoaxial joint, is located in the upper portion of the cervical spine. It consists of the C1 and C2 vertebrae, and the anatomical structures connecting them. This segment provides rotational motion, supports the head, and protects the spinal cord and nerve pathways.
Illustration showing the head, neck and shoulders of a skeleton, with highlights on the c2, c3, c4, and c5 vertebrae

Spinal Motion Segment: C2-C5 Animation

The C2-through-C5 spinal motion segments are located in the middle portion of the cervical spine. They include 3 separate spinal motion segments: C2 C3, C3 C4, and C4 C5. Each segment consists of 2 adjacent vertebrae and the anatomical structures connecting them. These segments are less likely to experience degeneration and pain compared to segments lower in the cervical spine.
Illustration of the c5-c6 spinal motion segment of the cervical spine

Spinal Motion Segment: C5-C6 Video

The C5 C6 spinal motion segment is located in the lower portion of the cervical spine. This segment helps provide neck flexibility, supports the upper cervical spine and head, and protects the spinal cord and nerve pathways.
Illustration of the head, neck and shoulders of a skeleton, with the c6 and c7 vertebrae highlighted

Spinal Motion Segment: C6-C7 Animation

The C6 C7 spinal motion segment is located in the lower part of the cervical spine and consists of the C6 and C7 vertebrae, and the anatomical structures connecting them. This segment helps provide neck flexibility, supports the cervical spine and head, and protects the spinal cord and nerve pathways.
Illustration of the head, neck and shoulders of a skeleton, with highlights on the C7 and T1 vertebrae.

Spinal Motion Segment: C7-T1 (Cervicothoracic Junction) Animation

The C7 T1 spinal motion segment, also called the cervicothoracic junction, is located where the cervical spine and thoracic spine connect. It consists of the C7 and T1 vertebrae, and the anatomical structures connecting them. This segment provides minimal flexibility, supports the neck and head above, and protects the spinal cord and nerve pathways.
Spine Anatomy Video

Spine Anatomy Overview Video

See illustrations of spinal anatomy and learn about components of the spine to help you better understand various sources of back pain and other back problems.