Rib 7

The rib 7 (seventh rib) is a s a true rib, meaning it directly attaches to the sternum via its own costal cartilage. The rib itself consists of a head, neck, tubercle, and body.

The head of the seventh rib articulates with the bodies of the sixth and seventh thoracic vertebrae. The neck is a flattened portion that extends laterally from the head. The tubercle, located at the junction of the neck and body, articulates with the transverse process of the seventh thoracic vertebra. The body of the rib is curved and flattened, providing structural support and protection to the thoracic organs.

The seventh rib also contributes to the formation of the costal margin, which is the lower edge of the chest formed by the cartilages of the seventh to tenth ribs. This rib is involved in the attachment of intercostal muscles, which play a role in respiration by aiding in the expansion and contraction of the thoracic cavity.

Studies have shown that the seventh rib contains a significant amount of cartilage, making it a preferred site for cartilage harvesting in procedures such as rhinoplasty.