What role do nerves play in the body?

Nerves play a vital role in controlling bodily movements by transmitting signals between the brain and various parts of the body, facilitating coordination and response to stimuli. When the brain sends a command to move a muscle, it uses nerves to relay that information rapidly and effectively. This is crucial for voluntary actions, such as walking or waving, as well as involuntary movements, like reflexes. The nervous system integrates sensory input, processes it, and initiates appropriate motor responses, making it essential for both precise movements and overall bodily functioning.

In contrast, other options such as providing energy relate more to metabolic processes rather than the specific function of nerves. Similarly, supporting structures pertain to the skeletal system, while hormone production is the responsibility of the endocrine system. Therefore, the primary and accurate role of nerves is to control bodily movements by transmitting necessary information throughout the body.