Question

lo 3.6. the thoracic cage is formed by the __ and __. sacrum and coccyx clavicle and scapula vertebrae and intervertebral discs pelvis and femur sternum and 12 pairs of ribs with their costal cartilage

Explanation:

The thoracic cage is an important anatomical structure. It is composed of the sternum (breast - bone) and 12 pairs of ribs along with their costal cartilages. The other options list structures that are not part of the thoracic cage. The sacrum and coccyx are part of the pelvic girdle, the clavicle and scapula are part of the shoulder girdle, vertebrae and intervertebral discs are part of the vertebral column but not the main components of the thoracic cage, and the pelvis and femur are parts of the lower - limb and pelvic regions.

Answer:

sternum and 12 pairs of ribs with their costal cartilage