Eleventh rib (left) (Costa undecima)
Educational content only — not medical advice.
Anatomy
Left rib 11: A floating rib: no neck or articular tubercle, a single facet on the head and a tapered tip, ending free without anterior cartilage.
Clinical notes
A fractured 11th rib hurts on deep breathing and coughing; multiple adjacent rib fractures create flail chest with paradoxical movement needing ventilatory support.
Related structures
Educational references
FAQ
What is the role of the Eleventh rib (left)?
Left rib 11: A floating rib: no neck or articular tubercle, a single facet on the head and a tapered tip, ending free without anterior cartilage.
Why is the Eleventh rib (left) clinically important?
A fractured 11th rib hurts on deep breathing and coughing; multiple adjacent rib fractures create flail chest with paradoxical movement needing ventilatory support.
Source & license
Derived from Z-Anatomy (Gauthier Kervyn et al.), CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/); upstream geometry from BodyParts3D, © The Database Center for Life Science. license details