Biology 30 – Nervous and Endocrine System Practice Test

Think in terms of direction of information flow. Afferent (sensory) neurons bring signals from receptors into the CNS. Interneurons connect neurons within the CNS. Efferent (motor) neurons carry commands from the CNS to an effector such as a muscle or gland. The described neuron sends impulses from the CNS to an effector, so it is a motor neuron. Motor neurons innervate muscles or glands to produce actions like contraction or secretion.