Question 1

Stimulation of alpha-2 adrenergic receptors on spinal interneurons typically results in a _______ in excitability of ______ supplied by these interneurons.

Accepted Answer

A)   increase; motor neurons
B)   decrease; motor neurons
C)   increase; sensory
D)   decrease; sensory
E)   alpha-2 receptors are not located in the spinal cordF) A) and B)
G) All of the above B

Question 2

Bronchospasm associated with respiratory ailments such as asthma,bronchitis,and emphysema is often treated with

Accepted Answer

A)   beta-1 adrenergic agonists
B)   beta-1 adrenergic antagonists (blockers) 
C)   beta-2 adrenergic agonists
D)   beta-2 adrenergic antagonists (blockers) 
E)   alpha-1 adrenergic agonistsF) B) and D)
G) B) and C) C

Question 3

To increase cardiac output,a drug should selectively _____ receptors on the heart.

Accepted Answer

A)   stimulate; alpha-1
B)   inhibit; alpha-1
C)   stimulate; alpha-2
D)   inhibit; alpha-2
E)   stimulate; beta-1F) A) and B)
G) None of the above E

Question 4

A drug that selectively stimulates alpha-1 adrenergic receptors will cause

Accepted Answer

A)   vasoconstriction of peripheral arterioles
B)   increased heart rate
C)   decreased blood pressure
D)   bronchodilationE) C) and D)
F) B) and C)

Question 5

Adrenergic antagonists that are selective for the beta-1 subtype (i.e.,beta-1 blockers) can be useful in the treatment of

Accepted Answer

A)   high blood pressure
B)   heart failure
C)   certain cardiac arrhythmias
D)   recovery from myocardial infarction
E)   all the above are trueF) A) and C)
G) A) and B)

Exam 20: Adrenergic Drugs

Stimulation of alpha-2 adrenergic receptors on spinal interneurons typically results in a _ in excitability of supplied by these interneurons.

Correct Answer
verified
B

Bronchospasm associated with respiratory ailments such as asthma,bronchitis,and emphysema is often treated with

Correct Answer
verified
C

To increase cardiac output,a drug should selectively _____ receptors on the heart.

Correct Answer
verified
E

A drug that selectively stimulates alpha-1 adrenergic receptors will cause

Correct Answer
verified

Adrenergic antagonists that are selective for the beta-1 subtype (i.e.,beta-1 blockers) can be useful in the treatment of

Correct Answer
verified

Exam 20: Adrenergic Drugs

Stimulation of alpha-2 adrenergic receptors on spinal interneurons typically results in a _______ in excitability of ______ supplied by these interneurons.

Correct AnswerverifiedB

Bronchospasm associated with respiratory ailments such as asthma,bronchitis,and emphysema is often treated with

Correct AnswerverifiedC

To increase cardiac output,a drug should selectively _____ receptors on the heart.

Correct AnswerverifiedE

A drug that selectively stimulates alpha-1 adrenergic receptors will cause

Correct AnswerverifiedShow Answer

Adrenergic antagonists that are selective for the beta-1 subtype (i.e.,beta-1 blockers) can be useful in the treatment of

Correct AnswerverifiedShow Answer

Stimulation of alpha-2 adrenergic receptors on spinal interneurons typically results in a _ in excitability of supplied by these interneurons.

Correct Answer
verified
B

Correct Answer
verified
C

Correct Answer
verified
E

Correct Answer
verified

Correct Answer
verified