Which ligament connects the transverse processes and is most prominent in the lumbar spine and limits lateral flexion?

• A. Intertransverse ligaments
• B. Interspinous ligament
• C. Supraspinous ligament
• D. Ligamentum flavum

Answer: (A)

Intertransverse ligaments connect adjacent transverse processes, and they are especially prominent in the lumbar spine to provide stability against side-to-side movement. Their position between the transverse processes makes them well suited to limit lateral flexion, helping keep adjacent vertebrae aligned when the torso bends to the side. Other spinal ligaments have different primary roles: interspinous ligaments run between the spinous processes and mainly restrain flexion; the supraspinous ligament along the tips of the spinous processes also helps limit flexion; the ligamentum flavum between the laminae supports the spine’s stability and assists with returning from flexion. Because of their location and function, the intertransverse ligaments are the ones that connect the transverse processes and primarily limit lateral flexion, especially in the lumbar region.