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The nervous system acts as the body's control center for rapid response. Neurons transmit electrical signals (action potentials) over long distances. Sensory receptors detect changes in the environment (stimuli), sending afferent information to the central nervous system (CNS). The CNS integrates this information and sends efferent signals to effectors (muscles or glands) to initiate a response. This feedback loop allows for immediate adjustments to maintain homeostasis. Legitimate digital versions are available on platforms like