Rib 2 (right) — true rib

Function

Mirror-image second rib, forming the front of the upper thorax and the origin platform for the serratus anterior that swings the scapula.

Landmarks

• Serratus anterior tuberosity

Articulations (joints)

• T1–T2 vertebrae
• Sternum at the sternal angle

Clinical relevance

First- and second-rib fractures indicate high-energy trauma and warrant assessment for great-vessel and brachial plexus injury.