Quiz 18: Introduction to Autonomic Pharmacology

All preganglionic neurons and parasympathetic postganglionic neurons are said to be _____ in nature because of the presence of ______ at their respective synapses. A)adrenergic;norepinephrine B)cholinergic;norepinephrine C)adrenergic;acetylcholine D)cholinergic;acetylcholine E)adrenergic;epinephrine

A drug that affects nicotinic cholinergic receptors will affect activity in both divisions of the autonomic nervous system (ANS)because: A)nicotinic cholinergic receptors are found on all organs and tissues innervated by the ANS. B)nicotinic cholinergic receptors are located at the junction between preganglionic and postganglionic neurons in both the sympathetic and parasympathetic pathways. C)both divisions of the ANS affect peripheral tissues by releasing epinephrine onto those tissues. D)all the above E)none of the above

A drug that inhibits muscarinic cholinergic receptors will selectively: A)increase sympathetic responses on peripheral tissues. B)decrease sympathetic responses on peripheral tissues. C)increase parasympathetic responses on peripheral tissues. D)decrease parasympathetic responses on peripheral tissues. E)increase responses in all tissues innervated by the autonomic nervous system.

In most peripheral tissues,sympathetic postganglionic neurons release ____ that binds directly to ____ receptors. A)epinephrine;adrenergic B)epinephrine;cholinergic C)norepinephrine;adrenergic D)norepinephrine;cholinergic E)acetylcholine;adrenergic

Alpha and beta receptors are the two primary subcategories of: A)muscarinic cholinergic receptors. B)nicotinic cholinergic receptors. C)dopamine receptors. D)5-hydroxytryptamine (serotonin)receptors. E)adrenergic receptors.