THE NERVOUS SYSTEM

Nerves can be sensory, motor, or mixed, carrying both sensory and motor fibers. 9.10 Nerve Pathways (p. 218) The routes nerve impulses travel are called pathways, the simplest of which is a reflex arc. Reflex Arcs (p. 218) A reflex arc includes a sensory receptor, a sensory neuron, an interneuron in the spinal cord, a motor neuron, and an effector. ................
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