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Multiple Choice
Alcohol stimulates the release of _____, the brain's major depressant.
A
GABA
B
endorphins
C
thyroxin
D
serotonin
Verified step by step guidance
1
Identify the role of alcohol in the brain: Alcohol is known to have a depressant effect on the central nervous system.
Understand the function of GABA: Gamma-Aminobutyric Acid (GABA) is the primary inhibitory neurotransmitter in the brain, which means it reduces neuronal excitability.
Consider how alcohol interacts with neurotransmitters: Alcohol enhances the effects of GABA, leading to increased inhibitory effects in the brain, which contributes to its depressant properties.
Evaluate the options: Endorphins are neurotransmitters that act as natural painkillers and mood enhancers, thyroxin is a hormone related to metabolism, and serotonin is a neurotransmitter that affects mood and emotion.
Conclude that GABA is the neurotransmitter that aligns with alcohol's depressant effects, as it is the brain's major inhibitory neurotransmitter.