MCQOPTIONS
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| 1. |
_________________ usually communicates inhibitory messages to other neurons and helps balance and offset excitatory messages. |
| A. | Gamma-aminobutyric acid (GABA) |
| B. | Norepinephrine |
| C. | Dopamine |
| D. | Serotonin |
| Answer» B. Norepinephrine | |