What is one main function of the muscular system?

The muscular system plays a crucial role in facilitating movement throughout the body. Muscles work in coordination with the skeletal system to enable various types of movement including walking, running, jumping, and even finer movements such as writing or playing an instrument. When muscles contract, they pull on bones to create movement at the joints. This interaction between muscles and bones is essential not only for voluntary movements but also for involuntary actions, such as the beating of the heart and movements of the digestive tract. Overall, the functionality of the muscular system is foundational to maintaining mobility and performing daily activities.