What type of muscles does the muscular system primarily focus on?

The muscular system primarily focuses on skeletal muscles, as these are the muscles responsible for voluntary movements of the body. Skeletal muscles are attached to bones via tendons and are under conscious control, allowing for a wide range of movements such as walking, running, and lifting. These muscles are essential for maintaining posture and executing various physical tasks.

While cardiac muscles are specialized muscles found in the heart and smooth muscles are located in the walls of hollow organs (like the intestines and blood vessels), they do not fall under the primary focus of the muscular system in terms of voluntary movement and body mechanics. The emphasis on skeletal muscles highlights the distinction in function and control compared to the other types of muscle tissue, which operate involuntarily or have specific functions different from the physical movement enabled by skeletal musculature.