A reflex arc follows the sequence: Stimulus, Receptor, Sensory Neurone, Relay Neurone, Motor Neurone, Effector (muscle), and finally Action.
Stimulus Receptor Sensory Neurone Relay Neurone Motor Neurone Effector (muscle) Action
| Front | Reflex arc? |
|---|---|
| Back | Stimulus Receptor Sensory Neurone Relay Neurone Motor Neurone Effector (muscle) Action |
Tags: nerves
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