Y1S2 003 I Pharmacology Autonomic Nervous System: Functions and Regulation
28 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the effect of low dose epinephrine on blood pressure?

  • Decrease (correct)
  • Increase
  • First increase then decrease
  • Remain unchanged

    • Which receptor is responsible for the contraction of sphincters in the GIT?

  • α1 (correct)
  • β1
  • β2
  • α2

    • What is the effect of epinephrine on the uterus in pregnant women?

  • Variable response
  • No effect
  • Contraction
  • Relaxation (correct)

    • Why does high dose epinephrine cause a greater increase in blood pressure than low dose epinephrine?

    <p>Because of its effect on α1 receptors</p> Signup and view all the answers

    What is the effect of epinephrine on glycogenolysis?

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

    What is one of the clinical uses of epinephrine?

    <p>Treatment of acute asthma</p> Signup and view all the answers

    What is the primary function of the autonomic nervous system in relation to the heart?

    <p>Regulation of heart rate and force of contraction</p> Signup and view all the answers

    What is the response of the sympathetic nervous system often referred to as?

    <p>Fight, fright or flight response</p> Signup and view all the answers

    Which of the following receptors is mainly found on the heart, kidneys, and salivary glands?

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

    What is the function of Epinephrine/Adrenaline in the sympathetic nervous system?

    <p>A non-selective adrenergic (α and β) agonist</p> Signup and view all the answers

    What is the role of the parasympathetic nervous system in controlling heart rate and blood pressure?

    <p>Decreasing heart rate and blood pressure</p> Signup and view all the answers

    What is the term for the amount of blood pumped by the heart per minute?

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

    What is the effect of Norepinephrine/Noradrenaline on alpha receptors on blood vessels?

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

    What is the effect of Norepinephrine/Noradrenaline on beta 2 receptors?

    <p>No significant effect</p> Signup and view all the answers

    What is the primary effect of Norepinephrine/Noradrenaline on heart rate?

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

    What is the effect of Norepinephrine/Noradrenaline on blood pressure?

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

    What is the therapeutic use of Norepinephrine/Noradrenaline?

    <p>Hypotensive states</p> Signup and view all the answers

    What is the mechanism of inactivation of Epinephrine/Adrenaline?

    <p>Rapidly inactivated by MAO and COMT</p> Signup and view all the answers

    What is the effect of Propranolol on heart rate?

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

    What is the therapeutic use of Propranolol?

    <p>All of the above</p> Signup and view all the answers

    What is the type of receptor that Acetylcholine binds to in the heart?

    <p>M2</p> Signup and view all the answers

    What is the effect of the parasympathetic nervous system on blood vessels?

    <p>No effect</p> Signup and view all the answers

    What is the effect of M3 receptor stimulation on blood vessels?

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

    What is the therapeutic use of acetylcholine in ophthalmic surgery?

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

    What is the effect of atropine on the heart rate?

    <p>Increase in heart rate</p> Signup and view all the answers

    What is the duration of action of acetylcholine?

    <p>Short duration</p> Signup and view all the answers

    What is the effect of acetylcholine on smooth muscles?

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

    What is the effect of atropine on the actions of acetylcholine?

    <p>Blocks the actions</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser