What type of neuron connects sensory and motor neurons?

• A. Sensory neuron
• B. Interneuron
• C. Motor neuron
• D. White matter

Answer: (B)

Interneurons are the neurons that link sensory and motor pathways inside the central nervous system. They receive input from sensory neurons and, after processing, relay signals to motor neurons, enabling integration and coordination of reflexes and other activities. This bridging role is what allows a sensory signal to trigger an appropriate motor response without traveling directly from a sensory neuron to a motor neuron. Sensory neurons carry information from receptors to the CNS, and motor neurons carry commands from the CNS to effectors like muscles; white matter is made up of axons and supports transmission but is not a neuron itself.