Which ligament does the interspinous ligament blend with ventrally?

Which ligament does the interspinous ligament blend with ventrally?

• A. Ligamentum flavum
• B. Posterior longitudinal ligament
• C. Intertransverse ligaments
• D. Anterior longitudinal ligament

Answer: (A)

Interspinous ligaments run between adjacent spinous processes and form a midline band along the back of the spine. As they reach the laminae, their fibers blend with the anterior fibers of the ligamentum flavum, creating a continuous posterior ligamentous connection that reinforces the spinal canal and helps limit flexion. The other ligaments occupy different planes or positions—posterior longitudinal lies inside the canal along the posterior aspect of the vertebral bodies, the anterior longitudinal runs along the front, and intertransverse ligaments lie between transverse processes—so they don’t blend ventrally with the interspinous.

Interspinous ligaments run between adjacent spinous processes and form a midline band along the back of the spine. As they reach the laminae, their fibers blend with the anterior fibers of the ligamentum flavum, creating a continuous posterior ligamentous connection that reinforces the spinal canal and helps limit flexion. The other ligaments occupy different planes or positions—posterior longitudinal lies inside the canal along the posterior aspect of the vertebral bodies, the anterior longitudinal runs along the front, and intertransverse ligaments lie between transverse processes—so they don’t blend ventrally with the interspinous.