EXERCISES, LESSON 8
INSTRUCTIONS: Answer the following exercises by marking the lettered response
which best answers the question.
After you have completed all the exercises, turn to "Solutions to Exercises" at the
end of the lesson and check your answers. For each exercise answered incorrectly,
reread the material referenced with the solution.
Which of the following statements best describes one of the mechanisms of
action of adrenergic blocking agents?
a. The production of excessive levels of acetylcholinesterase.
b. The inhibition of the reaction between norepinephrine and the receptor.
c. The inhibition of the synthesis, storage, or release of acetylcholine.
d. The production of substances that produce physiological effects the
opposite of norepinephrine.
Select the statement that best describes how alpha-adrenergic blocking
agents produce their effects.
a. The alpha-receptors are blocked and this allows the parasympathetic
nervous system to produce its effects.
b. The alpha-receptors are blocked while the beta-receptors still produce
c. The alpha-receptors as well as the beta1 receptors are blocked, but the
beta2 receptors still produce their effects.
d. The alpha-receptors are blocked and the effects of the beta-receptors are