Which area is located along the posterior trunk?

• A. Chest
• B. Back
• C. Neck
• D. Abdomen

Answer: (B)

Understanding directional terms and trunk regions helps. Posterior means the back side, and the trunk refers to the main body portion excluding the head and limbs. The area along the posterior trunk is the back—the dorsal side of the torso that includes the spine and back muscles. The chest is the front (anterior) part of the trunk, the abdomen is the front lower part, and the neck is a region that connects the head to the trunk and isn’t considered part of the trunk itself.