Final answer:
The body of the rib extends laterally from the tubercle and angles downward, contributing to the thoracic cage's protection of vital organs.
Step-by-step explanation:
The body of the rib, which is part of the bony structure in the thoracic region, extends laterally from the tubercle and angles downward. This anatomical feature allows the ribs to form the cage-like structure that protects the thoracic organs including the lungs and the heart.
The angle of the rib is identified as the point at which the rib takes on its greatest degree of curvature and contributes to the posterior extent of the thoracic cage. In the anatomical position, the angles are in line with the medial border of the scapula, which provides structural support for the upper body.