Costoxiphoid ligaments

Costoxiphoid Ligaments

Illustration of the costoxiphoid ligaments.

The costoxiphoid ligaments are fibrous bands that connect the costal cartilages of the lower ribs to the xiphoid process of the sternum. These ligaments play a role in stabilizing the anterior thoracic wall and are part of the complex structure of the thoracic cage.

Anatomy

The costoxiphoid ligaments are located at the inferior aspect of the thoracic cage. They extend from the seventh costal cartilage to the xiphoid process, which is the smallest and most inferior part of the sternum. The ligaments are composed of dense connective tissue, which provides both strength and flexibility to accommodate the movements of the thoracic cage during respiration.

Function

The primary function of the costoxiphoid ligaments is to provide support and stability to the lower part of the thoracic cage. By anchoring the costal cartilages to the xiphoid process, these ligaments help maintain the integrity of the thoracic wall, especially during respiratory movements such as inhalation and exhalation.

Clinical Significance

While the costoxiphoid ligaments are not commonly associated with clinical conditions, they can be involved in certain thoracic injuries or surgical procedures. For instance, trauma to the lower thoracic region may affect these ligaments, leading to pain or instability. Additionally, during certain surgical interventions involving the sternum or costal cartilages, care must be taken to preserve the integrity of the costoxiphoid ligaments to maintain thoracic stability.

Related Structures

The costoxiphoid ligaments are part of the broader network of ligaments and structures that support the thoracic cage. These include the costosternal ligaments, which connect the costal cartilages to the sternum, and the intercostal muscles, which fill the spaces between the ribs and assist in respiration.

Related Pages

• Thoracic cage
• Xiphoid process
• Costal cartilage
• Sternum
• Intercostal muscles