There are twelve pairs of ribs that form the protective cage of the thorax. They are curved and flat bones. Anteriorly, they continue as cartilage, known as costal cartilage.
Costochondral joint (junction): Anatomy, function
/wp-content/uploads/Overview-of
Rib cage - Anatomy, Structure, Function, Development
Sternum, Ribs, Cartilage, Bone
/wp-content/uploads/Structure-o
Muscles of Respiration - Physiopedia
Rib cage, Anatomy & Function
RIB CAGE KINETICS PART 1 - DIAPHRAGM FUNCTION (BIOMECHANICS OF THORAX )Physiotherapy Tutorial
Muscles of Respiration - Physiopedia