Which body system is responsible for movement and support?

The musculoskeletal system is responsible for movement and support in the body. This system is composed of bones, muscles, cartilage, tendons, and ligaments. The bones provide structure and support, forming the framework of the body. Muscles work in tandem with the bones to facilitate movement through contraction and relaxation. Cartilage cushions joints and enhances mobility, while tendons connect muscles to bones and ligaments connect bones to other bones at joints.

In this context, the respiratory system is involved primarily in gas exchange, bringing oxygen into the body and removing carbon dioxide. The circulatory system is responsible for the transport of blood, nutrients, and waste products throughout the body, but does not play a direct role in movement or structural support. The nervous system controls voluntary and involuntary movements and helps coordinate actions but does not provide the physical support and framework necessary for movement, which is the primary function of the musculoskeletal system. Thus, the musculoskeletal system is the correct answer as it directly contributes to both movement and the overall support of the body.