BoneIrregular bone
Second costal cartilage
Cartilago costalis II sinistra
- Location:
- Thorax — anterior
- Paired structure: one on the left and one on the right side of the body.
Function
Marks the palpable sternal angle — the rib-counting milestone and the anterior pleural reflection line.
Landmarks
- Junction forms the sternal angle
Articulations (joints)
- Second rib
- Sternum at the sternal angle
Clinical relevance
Pain at the second costochondral junction after cardiothoracic massage is common in resuscitation survivors.
Educational anatomy reference, not medical advice. About this content.