What is the primary function of the somatic nervous system?

The primary function of the somatic nervous system is to control voluntary movements by innervating skeletal muscles. This system is responsible for transmitting signals from the central nervous system to skeletal muscles, enabling conscious movement and coordination of bodily actions. For instance, when you decide to move your arm, the somatic nervous system activates the appropriate muscles to execute that movement.

The somatic nervous system is distinct from the autonomic nervous system, which manages involuntary functions like heart rate and digestion. While other choices mention important functions of different systems, they do not accurately describe the role of the somatic nervous system in controlling voluntary muscle movements. This focus on voluntary control is fundamental for activities such as walking, talking, and performing precise tasks that require conscious effort.