Lateral view of the thoracic skeleton

Term name Layer
1 Rib Layer 1
2 True ribs [I-VII] Layer 1
3 Intercostal space Layer 1
4 Superior thoracic aperture; thoracic inlet Layer 1
5 Costal cartilage Layer 1
6 Floating ribs [XI-XII] Layer 1
7 False ribs [VIII-XII] Layer 1