Articulation of head of rib

Articulation of Head of Rib is a term used in anatomy to describe the joint between the rib and the vertebra in the spinal column. This joint is a type of synovial joint, which is characterized by the presence of a fluid-filled space between the articulating surfaces of the bones.

Etymology

The term "articulation" comes from the Latin "articulatio", meaning a joint or juncture. The term "head of rib" refers to the end of the rib that articulates with the vertebra.

Anatomy

The articulation of the head of the rib occurs at two points: the costal facet on the body of the vertebra and the transverse costal facet on the transverse process of the vertebra. The head of the rib is divided into two articular surfaces by a crest. The larger surface articulates with the costal facet on the body of the vertebra, while the smaller surface articulates with the transverse costal facet.

The joint is stabilized by the radiate ligament, which attaches the head of the rib to the sides of the vertebral bodies and intervertebral disc. This ligament is strong and prevents dislocation of the joint.

Clinical Significance

Dislocation or subluxation of the articulation of the head of the rib can cause severe pain and can lead to conditions such as costovertebral joint syndrome. This condition is characterized by pain in the back and side of the chest, which can be exacerbated by movement or deep breathing.

Related Terms

• Costovertebral joint: The joint formed by the articulation of the head of the rib with the vertebra.
• Costotransverse joint: The joint formed by the articulation of the tubercle of the rib with the transverse process of the vertebra.
• Radiate ligament: The ligament that stabilizes the articulation of the head of the rib.

Articulation of head of rib Resources
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