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Chapter 10: Part 1
Anatomy
Component | Function |
---|---|
receptor (receptor end of a dendrite or a specialized receptor cell in a sensory organ) | sensitive to an internal or external change |
sensory neuron (dendrite, cell body, and axon of a sensory (afferent) neuron) | transmits nerve impulse from the receptor to the brain or spinal cord |
interneuron (dendrite, cell body, and axon of a neuron within the brain or spinal cord) | serves as processing center; conducts nerve impulse from the sensory neuron to a motor neuron |
motor neuron (dendrite, cell body, and axon of a motor (efferent) neuron) | transmits nerve impulse from the brain or spinal cord to an effector |
effector (muscle or gland outside the nervous system) | responds to stimulation by the motor neuron and produces the reflex behavioral action |