BoneFlat bone
Rib 11 (right) — floating rib
Costa XI dextra
- Location:
- Posterior lower thorax
Function
Right floating rib, splinting the posterior abdominal wall and the kidney's upper pole with muscular — not cartilaginous — cover.
Landmarks
- Single facet
- Free anterior tip
Articulations (joints)
- T11 vertebral body only
Clinical relevance
Floating-rib fractures are easily missed on initial chest films; repeat CT is warranted when renal injury is suspected.
Educational anatomy reference, not medical advice. About this content.