The musculoskeletal system refers to the combination of muscles and bones that make up the human body. This system allows us to perform various activities such as walking, running, jumping, and lifting. Synonyms for the musculoskeletal system include locomotor system, musculoskeletal apparatus, skeletal system, and bones and muscles system. The locomotor system is a broad term that encompasses all the parts of the body that aid in movement. The musculoskeletal apparatus is a medical term that focuses on the structures that make up the system. The skeletal system refers only to the bones, while the bones and muscles system includes both the bones and muscles. Regardless of the synonym used, the musculoskeletal system plays a critical role in our day to day actions.