Final answer:
The posterior thorax refers to the back area of the thorax, which includes the spine, ribs, and back muscles. These muscles help with movements and posture.
Step-by-step explanation:
The posterior thorax refers to the back area of the thorax, which includes the spine, ribs, and muscles located on the back side of the thoracic cage. It is important for maintaining proper posture and facilitating movements of the upper body. The posterior thorax refers to the back area of the thorax, which includes the spine, ribs, and back muscles. These muscles help with movements and posture.
Example: The trapezius and rhomboid muscles are located in the posterior thorax and are responsible for moving the scapula and stabilizing the shoulders.