BoneIrregular bone
Fifth costal cartilage
Cartilago costalis V sinistra
- Location:
- Thorax — anterior
- Paired structure: one on the left and one on the right side of the body.
Function
Left fifth costal cartilage, joining rib 5 to the sternum near the heart's apex region.
Landmarks
- Apex-beat level
Articulations (joints)
- Fifth rib
- Sternum body
Clinical relevance
Rib and costochondral fractures are common after CPR in older adults — compressions belong on the lower half of the sternum.
Educational anatomy reference, not medical advice. About this content.