Methamphetamine Increases the Release of Dopamine from an Axon's Terminal

question 60

Multiple Choice

Methamphetamine increases the release of dopamine from an axon's terminal button. Curare blocks the release of acetylcholine. Methamphetamine is a dopamine ______; curare is an acetylcholine ______.

• A)antagonist; agonist
• B)exciter; inhibitor
• C)agonist; antagonist
• D)inhibitor; exciter

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Definitions:

Dorsal Rami

Branches of spinal nerves that innervate muscles and skin of the back.

Endorphins

Natural pain-relieving and happiness-inducing chemicals produced by the brain in response to stress or discomfort.

Neurotransmitters

Chemicals in the brain and body that transmit signals across neurons.

Vestibulocochlear

Pertaining to the vestibulocochlear nerve, which transmits sound and equilibrium (balance) information from the inner ear to the brain.