Tags: Anatomical Structure, Bone.
The thoracic skeleton is a component of the axial skeleton.It consists of the ribs and sternum.The ribs of the thorax are numbered in descending order from 1-12. 11 & 12 are known as floating ribs because they have no anterior attachment point in particular the cartilage attached to the sternum as 1-7 are and therefore are termed floating. Whereas ribs 8-10 are termed false ribs as their costal cartilage articulates with the rib aboves costal cartilage.
