Radiate ligament of head of rib

The radiate ligament of head of rib (in red) connects the head of the rib to the bodies of the thoracic vertebrae.

The Radiate Ligament of Head of Rib is a ligament that connects the head of rib to the bodies of the thoracic vertebrae. It is part of the skeletal system and plays a crucial role in the stability and mobility of the rib cage.

Anatomy

The radiate ligament of head of rib is a three-part ligament that extends from the anterior part of the head of the rib. The superior part attaches to the body of the vertebra above, the inferior part to the body of the vertebra below, and the middle part to the intervertebral disc. This ligament is also known as the stellate ligament due to its star-like shape.

Function

The primary function of the radiate ligament of head of rib is to stabilize the head of the rib against the vertebrae, preventing dislocation while allowing a certain degree of rotation. This rotation is essential for the expansion and contraction of the rib cage during respiration.

Clinical Significance

Injuries or conditions that affect the radiate ligament of head of rib can lead to pain and limited mobility. These conditions include osteoarthritis, rheumatoid arthritis, and ankylosing spondylitis. Treatment options depend on the severity of the condition and may include physical therapy, medication, or surgery.

See Also

• Costovertebral joint
• Costotransverse joint
• Ligament