EXERCISES, LESSON 7
INSTRUCTIONS: Answer the following exercises by marking the lettered response that
best answers the exercise, by completing the incomplete statement, or by writing the
answer in the space provided at the end of the exercise.
After you have completed all of 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.
1. Which statement best describes the mechanism of action of sedative-
a. They inhibit the flow of potassium and sodium ions across the
semipermeable membranes of the nerves.
b. They inhibit the depolarization of the nerve fibers and thus produce calm
c. They depress the reticular activating system (RAS).
d. They inhibit the transmission of electrical impulses from the brain by
interfering with the passage of certain ions through the nerve fibers.
Select the effect(s) produced by the sedative-hypnotics.
Relief of anxiety.
All the above.