BoneIrregular bone
Tenth costal cartilage
Cartilago costalis X sinistra
- Location:
- Thorax — lowest
- Paired structure: one on the left and one on the right side of the body.
Function
The margin's last docked cartilage — below it the floating ribs swing free.
Landmarks
- Free rounded tip
Articulations (joints)
- Tenth rib
- Costal margin's free end
Clinical relevance
The lowest point of the costal margin (10th costal cartilage) marks the subcostal plane at about L3.
Educational anatomy reference, not medical advice. About this content.