Sterno-costal ligaments Radiate

The radiant sternocostal ligaments (lat. ligamenta sternocostalia radiata) are paired ligaments connecting the sternum to the ribs. They are flat cords that fan out from the sternum to the ribs.

Each sternocostal radiate ligament is attached to the inner surface of the sternum, extending from its edge, and is directed laterally and posteriorly to the rib, attaching to its cartilage.

The sternocostal radiate ligaments strengthen the connection of the ribs with the sternum, limit the mobility of the ribs during breathing and are involved in the formation of intrathoracic pressure. Their number corresponds to the number of ribs (usually 12 pairs).