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Question 1

A(n) facilitates or mimics the activity of a given neurotransmitter system.

Cocaine has two effects on synaptic transmission: it impairs the reuptake of dopamine and it causes more dopamine to be released into the synapse. Based on this description, how would cocaine be classified--agonist, antagonist, or reuptake inhibitor? Why?

Drugs such as lidocaine and novocaine act as Na+ channel blockers. In other words, they prevent sodium from moving across the neuronal membrane. Why would this particular effect make these drugs such effective local anesthetics?




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MathQuill
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   x  √  (   ) π ∞ DNE
( ) ( ] [ ) [ ] —∞ ∞ ∪ DNE
< > ≤ ≥ or All Real Numbers DNE
log logn ln n√  | | e 
sin cos tan arcsin arccos arctan ⟨ ⟩
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