Which organ system is responsible for movement and stability of the body?

The musculoskeletal system is primarily responsible for movement and stability of the body. This system comprises bones, muscles, cartilage, tendons, and ligaments, all of which work together to facilitate movement. The muscles contract to produce movement at joints, while the bones provide structure and leverage. Additionally, ligaments and tendons support and stabilize the joints, ensuring that movements are smooth and coordinated.

In contrast, the other systems mentioned play different roles. The nervous system is essential for coordinating and controlling movements but does not itself provide the physical means of movement. The cardiovascular system's primary function is to circulate blood, delivering oxygen and nutrients to tissues, while the respiratory system is responsible for gas exchange—bringing oxygen into the body and expelling carbon dioxide. These systems are vital for overall health and function but do not specifically address the mechanical aspects of movement and stability like the musculoskeletal system does.