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Question

Which one of the following acts as inhibitory neurotransmitter?

A
GABA
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B
Adrenaline
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C
Norepinephrine
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D
Acetylcholine
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Solution

The correct option is B GABA
Gamma-aminobutyric acid (GABA) is a neurotransmitter. It is an inhibitory neurotransmitter, i.e, it inhibits neural responses, calm down the activity of the brain. It treats anxiety naturally. Adrenaline is a stress hormone. Acetylcholine is a neurotransmitter that is found between neurons. Norepinephrine is synthesised from dopamine and released is a hormone and functions as a neurotransmitter affecting the heart. So, the correct answer is option A.

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