ANS Vocab. Flashcards
Adrenergic Antagonist
Drug that blocks the actions of the sympathetic nervous system
Adrenergic
Relating to the nerves that release norepinephrine or epinephrine
Dopaminergic
Liberating, activated by, or involving dopamine or related substances
Catecholamines
Class of agents secreted in response to stress that include epinephrine, norepinephrine, and dopamine
Mydriasis
Pupil dilation
Sympathomimetics
Drug that stimulates or mimics the sympathetic nervous system
Sympatholytics
Term referring to inhibition of the sympathetic nervous system; actions opposite of sympathomimetic functions in the body
Acetylcholine
Primary neurotransmitter of the parasympathetic nervous system; also present at somatic neuromuscular junctions and at sympathetic preganglionic nerves
Cholinergic
Relating to nerves that release acetylcholine
Anticholinergic
Drug that blocks the actions of the parasympathetic nervous system
Cholinesterase
An enzyme that hydrolyzes choline esters and that is found especially in blood plasma
Miosis
Contraction of the pupil
Neurotransmitters
A substance (norepinephrine or acetylcholine) that transmits nerve impulses across a synapse
Nicotinic
Type of Cholinergic receptor found in ganglia of both the sympathetic and parasympathetic nervous systems
Muscarinic
Type of Cholinergic receptor found in smooth muscle, cardiac muscle and glands
