Final answer:
During a physical exam, the three organ systems that are commonly focused on are the cardiovascular system, respiratory system, and musculoskeletal system.
Step-by-step explanation:
The three organ systems that are commonly focused on during a physical exam are the cardiovascular system, respiratory system, and musculoskeletal system.
The cardiovascular system is responsible for the transportation of oxygen, nutrients, hormones, and waste products throughout the body. It includes the heart, blood vessels, and blood.
The respiratory system is involved in the exchange of gases, specifically oxygen and carbon dioxide. It includes the nose, trachea, lungs, and diaphragm.
The musculoskeletal system consists of the bones, muscles, joints, and connective tissues. It provides support, protection, and movement for the body.