EXERCISES, LESSON 7
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.
Select the mechanism(s) of action of drugs that stimulate the sympathetic
Mimicking the action of the transmitter acetylcholine.
Rapidly displacing the transmitter from its storage site to activate the
Increasing the uptake of transmitter into the storage sites.
Helping the enzymes that break down the transmitter.
Stimulation of the beta2 receptor site results in:
Decreased motility of the intestinal tract.
What is the effect upon the heart of adrenergic stimulation?
No effect is known.
Decreased cardiac output.
Increased heart rate.
Decreased force of contraction.