Which Word in Parentheses Better Fits Each of the Following

Essay

Which word in parentheses better fits each of the following definitions?
1. Basic building blocks of the nervous system (nerves, neurons)
2. Cell parts that receive nerve impulses (axons, dendrites)
3. Site of communication between neurons (synapse, myelin sheath)
4. Opiate-like substance in the brain (dopamine, endorphin)
5. Chemicals that make it possible for neurons to communicate (neurotransmitters, hormones)
6. Hormone closely associated with emotional excitement (epinephrine, estrogen)
B. Imagine that you are depressed, and you hear about a treatment for depression that affects the levels of several neurotransmitters thought to be involved in the disorder. Based on what you have learned, what questions would you want to ask before deciding whether to try the treatment?