Receptor Types and Responses Quiz
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Questions and Answers

What is the primary effect of atropine on the detrusor muscle?

  • Causes mydriasis
  • Relaxes it
  • Decreases its tone (correct)
  • Increases its tone
  • Which drug is known for causing prolongation of QT interval at high doses among the listed antimuscarinic drugs?

  • Tolterodine
  • Solifenacin (correct)
  • Oxybutynin
  • Darifenacin
  • Which antimuscarinic drug has the greatest M3 selectivity among the listed options?

  • Oxybutynin
  • Tolterodine
  • Darifenacin (correct)
  • Fesoterodine
  • What is a common side effect of anticholinergic drugs that may affect vision?

    <p>Blurred vision</p> Signup and view all the answers

    Which drug, used for motion sickness, is classified as a muscarinic antagonist?

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

    Why should anticholinergic drugs be used with caution in pregnant females according to the text?

    <p>They decrease milk production</p> Signup and view all the answers

    Which receptor subtype is located in all autonomic nervous system ganglia and the adrenal medulla?

    <p>Nicotinic n</p> Signup and view all the answers

    Where are Nicotinic m receptors primarily located?

    <p>Neuromuscular junction</p> Signup and view all the answers

    Which subtype of cholinergic receptor is primarily located in the bladder detrusor and GI smooth muscle?

    <p>M3</p> Signup and view all the answers

    Beta 2 adrenergic receptors cause which of the following effects?

    <p>Bronchial dilation</p> Signup and view all the answers

    Which drug is used for dry mouth treatment in Sjogren Syndrome by activating muscarinic receptors?

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

    What do muscarinic antagonists selectively block the effects of at muscarinic receptors?

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

    Which receptor activation leads to vasoconstriction and mydriasis?

    <p>Alpha 1</p> Signup and view all the answers

    What is the therapeutic use of alpha 2 blockade?

    <p>Relief of severe pain</p> Signup and view all the answers

    Which condition is treated with alpha 1 blockade?

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

    What are the adverse effects of beta 2 blockade?

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

    In which condition does beta 1 activation enhance impulse conduction in the AV node?

    <p>Cardiac arrest</p> Signup and view all the answers

    What is the main therapeutic application of beta blockade?

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

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