Interspinous ligament

Interspinous ligament is a ligament that connects the spinous processes of the vertebrae in the spinal column. It is one of the intrinsic ligaments of the spine, which help to stabilize the spinal column and protect it from injury.

Etymology

The term "interspinous" comes from the Latin "inter-", meaning "between", and "spinous", referring to the spinous processes of the vertebrae. The term "ligament" comes from the Latin "ligamentum", meaning "a binding or bandage".

Anatomy

The interspinous ligament runs between the spinous processes of adjacent vertebrae, from the root to the apex of each process. It is thin and membranous, and is broader and thicker below than above due to the increasing size of the spinous processes in the lower part of the vertebral column. The ligament is composed of several layers of fibrous tissue, with the fibers running predominantly in a vertical direction.

Function

The main function of the interspinous ligament is to limit the amount of flexion (forward bending) of the vertebral column. It also helps to stabilize the spine and prevent excessive movement between the vertebrae.

Clinical significance

Damage to the interspinous ligament can occur as a result of trauma, such as a fall or a car accident, or due to degenerative conditions such as osteoarthritis. This can lead to instability of the spine and back pain. Treatment may involve physical therapy, medication, or in severe cases, surgery to repair or replace the damaged ligament.

Related terms

• Supraspinous ligament: A ligament that runs along the tips of the spinous processes of the vertebrae.
• Ligamentum flavum: A ligament that connects the laminae of adjacent vertebrae.
• Anterior longitudinal ligament: A ligament that runs down the anterior surface of the vertebral bodies.

Interspinous ligament Resources
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