What is the most abundant catecholamine in the adrenal medulla?

The nicotinic cholinergic receptors found prominently at which one(s) of the following site(s)?

Which one of the following agents is an uptake I blocker?

Extraneuronal, e.g. glial, uptake system for catecholamines describes which one of the following?

This ß receptor type is mainly associated with the myocardium.

The primary CNS site of action of this agent is at postsynaptic alpha-2 receptor sites:

Prominent autonomic tone at arterioles:

Predominant autonomic tone: heart

Prominent autonomic tone in the G.I. tract:

Choose the α-1 receptor antagonist from the following list:

Choose the α-2 receptor antagonist from the following list:

Which one of the following drugs would be somewhat more likely to cause an asthma attack and a documented asthmatic patient?

Which one of the following drug shows the least sensitivity to the actions of acetylcholinesterase?

Which one of the following drug shows the highest activity at nicotinic, cholinergic sites?

Reflex tachycardia due to acute hypotension would be prevented by which one of the following drugs?

Choose the selected ß-2 agonist which was originally developed as a uterine relaxant.