Central nervous system neurons that internally communicate and intervene between the sensory inputs and motor outputs?

• A. Interneurons
• B. Motor Neurons
• C. Sensory Neurons
• D. Nerves

Answer: (A)

Interneurons are the neurons that live entirely within the central nervous system and act as the bridge between sensing and acting. They receive input from sensory neurons, process and interpret that information, and then relay commands to motor neurons to produce a response. This role is what lets the brain and spinal cord integrate multiple signals, coordinate reflexes, and generate appropriate actions. In contrast, sensory neurons carry information from receptors to the CNS, motor neurons carry commands from the CNS to muscles, and nerves are bundles of axons outside the CNS that transmit these signals.