Neuron that use Acetylcholine (ACh) as its neurotransmitter are what type of neuron?
Explanation & Rationale
A) GABA-ergic: GABA-ergic neurons use gamma-aminobutyric acid (GABA) as their neurotransmitter, not acetylcholine (ACh). GABA is the main inhibitory neurotransmitter in the brain, playing a crucial role in reducing neuronal excitability. B) Dopaminergic: Dopaminergic neurons release dopamine as their neurotransmitter. Dopamine is involved in several critical functions, including movement, reward, and regulation of mood. Since acetylcholine is not involved in dopaminergic transmission, this is not the correct answer. C) Cholinergic: Cholinergic neurons use acetylcholine (ACh) as their neurotransmitter. These neurons are involved in many functions, including muscle activation (in the somatic nervous system), as well as modulating parasympathetic responses in the autonomic nervous system. D) Serotonergic: Serotonergic neurons release serotonin (5-HT), which is a neurotransmitter involved in regulating mood, appetite, sleep, and other functions. Acetylcholine is not involved in serotonergic transmission