The Ribs That Have No Attachment to the Sternum Are

Question

The ribs that have no attachment to the sternum are
A) true ribs.
B) ribs 8-12 and are called false ribs.
C) floating ribs.
D) ribs 11 and 12.
E) ribs 11 and 12 and are called floating ribs.

Accepted Answer

Ribs 11 and 12 are known as floating ribs because they do not attach to the sternum or to the cartilage of other ribs, but instead end in the posterior abdominal musculature, making them distinct from the other types of ribs.