In a reflex arc, the motor neuron ends by stimulating an

  • A. interneuron
  • B. sensory receptor
  • C. effector such as a muscle or gland
  • D. association area

Explanation

The effector, a muscle or gland, carries out the response, completing the receptor to effector pathway. Receptors start the arc and interneurons link the two, so only the effector belongs at the motor end.

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