Question

the ______ supports the pectoral girdle and upper limbs, and functions in breathing. o humerus o pelvis o thoracic cage o cervical vertebrae

Explanation:

The thoracic cage is a bony - cartilaginous structure that supports the pectoral girdle and upper limbs and is involved in the mechanics of breathing. The humerus is the bone of the upper arm, the pelvis is related to the lower body, and the cervical vertebrae are in the neck and not directly related to supporting the pectoral girdle and upper limbs in terms of breathing - related support.

Answer:

C. thoracic cage