Blake Smokes Marijuana

question 17

Multiple Choice

Blake smokes marijuana.When he first started using, he used to get high off one joint, but now he finds he needs to smoke more and more to get the same high.This is an example of

• A)withdrawal.
• B)tolerance.
• C)dopamine dependence.
• D)serotonin dependence.

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Definitions:

Agonist

A chemical or drug that binds to receptors in the brain and causes a reaction typically producing a biological response.

Antagonist

A substance that blocks or dampens a biological response by binding to and blocking a receptor rather than activating it.

Artificial Neurotransmitter

A synthetically produced chemical used to emulate the effects of natural neurotransmitters in the nervous system.

Endogenous Neurotransmitter

A type of neurotransmitter naturally produced within the body that facilitates communication between neurons in the nervous system.