Exam 2 Study Guide Chapter 4.2. The substance curare which is used by native South Americans for poisoning the tip of arrowheads .3. Fill in the blank: Cholinergic receptors use 4. After release, how are neurotransmitters deactivated in the synapse?5. What are the specific criterion for classifying a substance as a neurotransmitter?6. What are the catecholamine neurotransmitter(s)?7. What are the monoamine neurotransmitter(s)?8. What are the amino acid neurotransmitter(s)?9. In the mammalian brain, the major inhibitory neurotransmitter is .10. The NMDA receptor is a type of receptor for what neurotransmitter?11. Drugs that mimic GABAAreceptors might be effective in treating what?12. If a newly-developed drug is found to bind to dopamine receptors but does not activate them, the drug is classified as a(n)?13. Muscarinic receptors are
14. A patient in the hospital requires anti-nausea medication. Which of the following would provide the most rapid route of administration without unnecessary risk?