Pharmacology of Adrenergic Agonists Part 1
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Questions and Answers

Which neurotransmitter is associated with the parasympathetic nervous system?

  • Acetylcholine (ACh) (correct)
  • Noradrenaline
  • Dopamine
  • Adrenaline
  • Which drug is classified as a catecholamine adrenergic agonist?

  • Cocaine
  • Ephedrine
  • Salbutamol
  • Dobutamine (correct)
  • What is the direct mode of action of adrenaline?

  • Inhibition of catecholamine reuptake
  • Indirectly stimulate cholinergic receptors
  • Release of catecholamines from nerve endings
  • Stimulation of adrenoceptors (correct)
  • Which adrenergic agonist has both direct and indirect modes of action?

    <p>Ephedrine (B)</p> Signup and view all the answers

    Which receptor type is stimulated by low concentration of adrenaline?

    <p>β1,2,3 adrenoceptors (B)</p> Signup and view all the answers

    Why is adrenaline ineffective when taken orally?

    <p>It is rapidly destroyed by MAO &amp; COMT enzymes. (C)</p> Signup and view all the answers

    What is the main function of the Autonomic Nervous System (ANS)?

    <p>Organizes the function of involuntary organs (A)</p> Signup and view all the answers

    Which neurotransmitters are associated with the sympathetic nervous system?

    <p>Norepinephrine (NE) and Adrenaline (Epinephrine) (C)</p> Signup and view all the answers

    What are the two main types of adrenoceptors in the body?

    <p>α and β adrenoceptors (B)</p> Signup and view all the answers

    Which ILO (Intended Learning Outcome) relates to explaining information related to direct-acting adrenoceptor agonists?

    <p>ILO 2 (D)</p> Signup and view all the answers

    What do adrenergic agonists act on in the body?

    <p>Involuntary organs (A)</p> Signup and view all the answers

    Which classification is based on the receptor selectivity of adrenergic agonists?

    <p>Selective and Non-selective agonists (C)</p> Signup and view all the answers

    Which receptor stimulation increases blood pressure?

    <p>Stimulation of α1 receptors (B)</p> Signup and view all the answers

    What is the effect of stimulating α1 receptors on blood pressure?

    <p>Increases blood pressure (C)</p> Signup and view all the answers

    Which receptor stimulation causes norepinephrine release?

    <p>α2 receptors (B)</p> Signup and view all the answers

    What is the effect of stimulating β2 receptors on heart rate?

    <p>Increases heart rate (tachycardia) (A)</p> Signup and view all the answers

    Which receptor stimulation causes bronchoconstriction?

    <p>α1 receptors (C)</p> Signup and view all the answers

    What is the predominant receptor type stimulated by Isoproterenol (Isoprenaline)?

    <p>β1 receptors (C)</p> Signup and view all the answers

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