Pharmacological Actions of Sympatholytics Quiz
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Questions and Answers

Which adrenergic receptor subtype is primarily responsible for increasing the contractile force of the heart?

  • α1
  • α2
  • β2
  • β1 (correct)
  • In which of the following tissues does activation of α1 adrenergic receptors lead to relaxation?

  • Liver
  • Intestinal smooth muscle (correct)
  • Vascular smooth muscle
  • Genitourinary smooth muscle
  • Which adrenergic receptor subtype is primarily responsible for glycogenolysis in the liver?

  • β1 (correct)
  • β2
  • β3
  • α2
  • Which adrenergic receptor subtype mediates lipolysis in adipose tissue?

    <p>β3</p> Signup and view all the answers

    Which drug has actions on both α and β adrenergic receptors, but no β2 action?

    <p>Norepinephrine</p> Signup and view all the answers

    Which adrenergic receptor subtype is primarily responsible for increased renin secretion from juxtaglomerular cells?

    <p>β1</p> Signup and view all the answers

    Which adrenergic receptor subtype is primarily responsible for decreasing insulin secretion from pancreatic islets?

    <p>α2</p> Signup and view all the answers

    What is the primary effect of activating α-methylpropranolol on skeletal muscles?

    <p>Contraction</p> Signup and view all the answers

    What is the main pharmacological action of terbutaline on smooth muscles?

    <p>Relaxation</p> Signup and view all the answers

    Which adrenergic receptor subtype mediates decreased release of norepinephrine at nerve terminals?

    <p>α2</p> Signup and view all the answers

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