The chest wall (thoracic cage) is composed by twelve pairs of ribs laterally and the sternum anteriorly. The ribs are attached to the dorsal vertebrae (thoracic spine) posteriorly and along their costal cartilage to the sternum.
The thoracic cage main function is to protect the vital chest organs such as the heart and lungs.
There are five muscles that make up the thoracic cage; the intercostals (external, internal and innermost), subcostals, and transversus thoracis.
This 3D model was created from the file STS_036
The original CT examination can be reviewed at:
The 3D bone model created from this scan can be reviewed at:
The 3D skin model created from this scan can be reviewed at: