Receptors in Nervous System Quiz
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Questions and Answers

Which neurotransmitter plays a crucial role in the fight or flight response?

  • Glucagon
  • Norepinephrine
  • Epinephrine (correct)
  • Acetylcholine
  • Which receptor type does epinephrine primarily act on?

  • Nicotinic receptors
  • Alpha receptors
  • Muscarinic receptors
  • Beta 1 receptors (correct)
  • What is the main function of norepinephrine when used as a medication?

  • Reduce heart rate
  • Increase and maintain blood pressure (correct)
  • Enhance respiratory function
  • Lower blood pressure
  • Which receptor type is predominantly stimulated by norepinephrine?

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

    Which receptor family includes cholinergic nicotinic receptors?

    <p>Ligand-gated ion channels</p> Signup and view all the answers

    What type of receptors transduce extracellular signals into intracellular responses?

    <p>G-protein-coupled receptors</p> Signup and view all the answers

    What is the main effect of Beta-2 receptor activation in the body?

    <p>Increased glucose metabolism</p> Signup and view all the answers

    Which of the following is not a function of Beta-1 receptors?

    <p>Relaxation of bronchial smooth muscle</p> Signup and view all the answers

    Where are Beta-3 receptors primarily found in the body?

    <p>Gallbladder and urinary bladder detrusor muscle</p> Signup and view all the answers

    Which receptor type is responsible for bladder detrusor muscle relaxation?

    <p>Beta-3 receptor</p> Signup and view all the answers

    What is the effect of stimulating Beta-2 receptors in the lungs?

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

    Which enzyme converts Angiotensin I to Angiotensin II?

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

    Which type of receptors are activated by acetylcholine as a neurotransmitter?

    <p>Muscarinic receptors</p> Signup and view all the answers

    What is the primary use of indirect-acting cholinergic agents like Donepezil?

    <p>Memory loss and confusion in Alzheimer's disease</p> Signup and view all the answers

    Which drug is a competitive muscarinic receptor antagonist indicated for the treatment of COPD and asthma?

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

    Which drug is a direct-acting cholinergic agonist that helps to cause urination and emptying of the bladder?

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

    Which is a common side effect of antimuscarinic drugs like oxybutynin (Ditropan)?

    <p>Muscle cramps</p> Signup and view all the answers

    Where are nicotinic receptors located in the body?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    'Donepezil' is primarily used for the treatment of which condition?

    <p>Memory loss and confusion in Alzheimer's disease</p> Signup and view all the answers

    'Tiotropium' is most commonly used for which medical condition?

    <p>COPD and asthma</p> Signup and view all the answers

    'Scopolamine' patch is primarily used to help with which symptom?

    <p>Nausea and vomiting</p> Signup and view all the answers

    Which type of drugs act by stimulating or blocking receptors in the Autonomic Nervous System (ANS)?

    <p>Cholinergic agonists</p> Signup and view all the answers

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