4.9k views
5 votes
Why are ribs 11 and 12 called floating ribs?

User Licysca
by
5.5k points

2 Answers

6 votes

The phrase floating rib (Latin: costae fluctuantes) refers to the two lowermost, the eleventh and twelfth rib pairs; so-called because they are attached only to the vertebrae–and not to the sternum or cartilage of the sternum.
User JohnRaja
by
6.0k points
6 votes

The phrase floating rib (Latin: costae fluctuantes) refers to the two lowermost, the eleventh and twelfth rib pairs; so-called because they are attached only to the vertebrae–and not to the sternum or cartilage of the sternum.

User Robin Stewart
by
6.1k points