Trunk (thorax, abdomen, back)
Articular cartilage of costovertebral joints (Rib head & Tubercle I–XII)
Cartilagines articulares costovertebrales
- Origin
- Hyaline cartilage on rib heads and tubercles of ribs 1–12
- Insertion
- Costal facets on thoracic vertebral bodies and transverse processes
- Function
- Enables smooth bucket-handle and pump-handle rib movements during respiration
- Innervation
- Dorsal rami of thoracic nerves and intercostal nerves
- Movement & chain
- Axial rotation of the rib neck during breathing cycles
- Palpation
- Not palpated directly
- Clinical
- Costovertebral joint dysfunction / rib subluxation; ankylosing spondylitis with restricted chest expansion.
- Segmental innervation
- T1–T12
- In clinical practice
- Rib mobilization techniques and respiratory therapy
- Region in the model
- Trunk (thorax, abdomen, back)