Adrenergic refers to transmitters associated with which nervous system and which neurotransmitters?

• A. Parasympathetic System; Acetylcholine
• B. Sympathetic Nervous System; Norepinephrine And Epinephrine
• C. Central Nervous System; Dopamine
• D. Somatic Nervous System; GABA

Answer: (B)

Adrenergic signaling is tied to the sympathetic nervous system and to the transmitters norepinephrine and epinephrine. In the body, sympathetic postganglionic neurons mainly release norepinephrine to target organs, providing quick, localized responses, while the adrenal medulla releases epinephrine (and some norepinephrine) into the bloodstream to produce widespread effects. This adrenergic system is distinct from parasympathetic activity, which uses acetylcholine, and from other systems in the CNS or somatic pathways that rely on different neurotransmitters. So, the concept centers on the sympathetic division and its primary transmitters: norepinephrine and epinephrine.