What is the posterior wall of the thoracic cage?

According to features typical ribs are...

According to features atypical ribs are...

•The typical ribs have same general features, whereas the atypical ribs have special features.

The longest part of the rib, that extends between anterior and posterior ends.

Joint between the tubercle of the rib, and the transverse costal facet of the corresponding vertebra

Rib, that contains the tuberosity for serratus anterior

•The sternum can be divided into three parts:

•manubrium, 

•xiphoid process

and....

Manubriosternal joint is example of...