Why are ribs 11 and 12 called floating ribs?
A) They do not connect with the body of the sternum but they do attach to the xiphoid process.
B) They do not connect with the sternum at all.
C) They connect to the sternum by shared costal cartilages.
D) They connect to the sternum by individual costal cartilages.
E) They are the only ribs that articulate with the thoracic vertebrae.
Answer: B
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