1. As Roger is walking with the woman, he is so focused on what she is saying, he runs right into the glass door of the emergency room, hitting his nose directly. A wave of pain shoots through his body, and he yells in response. Explain how this process occurs using the following terms in context:
   1. Peripheral nervous system

1. Sensory Neuron

1. Central nervous system
2. Interneuron
3. Motor neuron
4. Action potential
5. Neurotransmitter
6. Synapse