Nicotine affects the __________ nervous system.​

A) ​central
B) ​peripheral
C) ​anterior
D) ​both a and b

Nicotine affects both the central and peripheral nervous system. When nicotine is inhaled or ingested, it rapidly reaches the brain and activates the release of various neurotransmitters, including dopamine, norepinephrine, and acetylcholine. This affects the central nervous system. Nicotine also binds to nicotine receptors in the peripheral nervous system, which activates the release of neurotransmitters, such as acetylcholine, in the autonomic ganglia and adrenal medulla. This affects the peripheral nervous system.