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The somatic nervous system is the division of the peripheral nervous system that is primarily responsible for controlling voluntary movements. It consists of motor neurons that innervate skeletal muscles, enabling individuals to perform conscious, deliberate actions such as walking, running, or any other form of movement that requires conscious control.
This system operates through the transmission of signals from the central nervous system (CNS) to skeletal muscles, allowing for fine motor control and coordination. In contrast to the autonomic nervous system, which regulates involuntary bodily functions such as heart rate and digestion, the somatic nervous system specifically facilitates actions that require a high degree of skill and awareness.
While the central nervous system is involved in processing and generating the commands for movement, it is the somatic nervous system that executes these commands, making it essential for any voluntary motor activity. The sympathetic nervous system, a subdivision of the autonomic nervous system, is more involved with the 'fight or flight' response and does not directly control voluntary muscle actions.