17 Questions
What is the primary neurotransmitter released by adrenergic neurons?
Norepinephrine
What is the difference between hormones and neurotransmitters?
Hormones are released into the bloodstream and act on distant target cells, while neurotransmitters act locally at the synapse.
Which of the following is an example of a catecholamine?
Dobutamine
What are the potential effects of high levels of catecholamines?
Headaches, sweating, pounding heart, chest pain, and anxiety.
What is the difference between sympathomimetic and sympatholytic drugs?
Sympathomimetics activate adrenergic receptors, while sympatholytics block their activation.
What is the primary function of the adrenergic system?
Mediating the body's stress response.
Which drug blocks the synthesis of norepinephrine (NE) by inhibiting the enzyme tyrosine hydroxylase?
Metyrosine
Which of the following drugs interferes with the storage of norepinephrine in vesicles?
Reserpine
Which drug class blocks the reuptake of norepinephrine into the presynaptic neuron?
Serotonin and norepinephrine reuptake inhibitors (SNRIs)
Which drug blocks the release of norepinephrine from the presynaptic neuron?
Guanethidine
Which drug increases the concentration of norepinephrine in the synaptic cleft by blocking its reuptake?
Imipramine
What are the two major subtypes of α adrenergic receptors?
α1 and α2
Which of the following correctly orders the potency and affinity/sensitivity of epinephrine, norepinephrine (NE), and isoproterenol for α adrenergic receptors?
Epinephrine > NE >> Isoproterenol
Which of the following correctly orders the potency and affinity/sensitivity of isoproterenol, epinephrine, and norepinephrine (NE) for β adrenergic receptors?
Isoproterenol > Epinephrine > NE
What are the two major types of adrenergic receptors mentioned in the text?
α and β
Which of the following statements about adrenergic receptor subtypes is correct?
The α1 and α2 subtypes are for α adrenergic receptors
What does the abbreviation 'NE' stand for in the context of adrenergic receptors?
Norepinephrine
Test your knowledge on adrenergic agonists in pharmacology with this quiz. Learn about the drugs that affect receptors stimulated by norepinephrine and epinephrine, as well as the types of adrenoceptors and adrenergic receptors involved.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
