What is the main function of the somatic nervous system?

The main function of the somatic nervous system is indeed focused on animal sensations and voluntary actions. This part of the nervous system is responsible for transmitting sensory information from the body to the central nervous system and relaying motor commands from the central nervous system to skeletal muscles. This essential role allows an organism to perform coordinated and intentional movements, responding to external stimuli in a conscious manner.

The somatic nervous system also plays a key role in processing sensory input, such as touch, pain, temperature, and proprioception, which helps in providing feedback for the motor functions initiated. This system is distinct from the autonomic nervous system, which operates involuntarily and regulates functions like heart rate and digestion. The ability to consciously control movements and respond actively to the environment is paramount to survival and interaction with surroundings, hence establishing the somatic nervous system's role in facilitating these voluntary actions and sensory experiences.