BIOLOGICAL BASES OF BEHAVIOR
THE NERVOUS AND ENDOCRINE SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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acetylcholine and seratonin
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acetylcholine and dopanine
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dopanine and GABA
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None of the above
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Detailed explanation-1: -The best-known neurotransmitters responsible for such fast, but short-lived excitatory action are acetylcholine, norepinephrine, and epinephrine while GABA is the major inhibitory neurotransmitter.
Detailed explanation-2: -Dopamine. Dopamine has effects that are both excitatory and inhibitory. It is associated with reward mechanisms in the brain.
Detailed explanation-3: -ACh has excitatory actions at the neuromuscular junction, at autonomic ganglion, at certain glandular tissues and in the CNS. It has inhibitory actions at certain smooth muscles and at cardiac muscle.
Detailed explanation-4: -The neurotransmitter acetylcholine is excitatory at the neuromuscular junction in skeletal muscle, causing the muscle to contract. In contrast, it is inhibitory in the heart, where it slows heart rate.
Detailed explanation-5: -Acetylcholine activation of mAChRs facilitates dopamine release in the striatum [12, 87, 88].