Public flashcard deck · 15 cards

Autonomic Pharmacology

Cholinergics, adrenergics, and their antagonists.

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1. Front

   Which receptor does atropine block?
   Back

   Muscarinic acetylcholine receptors.
2. Front

   What is the mechanism of propranolol?
   Back

   Non-selective beta-adrenergic antagonism.
3. Front

   Which drug reverses non-depolarising neuromuscular blockade?
   Back

   Neostigmine, an acetylcholinesterase inhibitor.
4. Front

   What receptor mediates bronchodilation?
   Back

   Beta-2 adrenergic receptors.
5. Front

   Why does phenylephrine cause reflex bradycardia?
   Back

   Alpha-1 vasoconstriction raises blood pressure, triggering the baroreceptor reflex.
6. Front

   What is the antidote for organophosphate poisoning?
   Back

   Atropine plus pralidoxime.
7. Front

   Which adrenergic receptor increases heart rate?
   Back

   Beta-1.
8. Front

   What is the effect of alpha-1 stimulation on vessels?
   Back

   Vasoconstriction.
9. Front

   Why is clonidine antihypertensive?
   Back

   It is a central alpha-2 agonist, reducing sympathetic outflow.
10. Front

    Which drug class causes a dry cough?
    Back

    ACE inhibitors.
11. Front

    What does dobutamine primarily stimulate?
    Back

    Beta-1 receptors, increasing contractility.
12. Front

    Which cholinergic drug treats myasthenia gravis?
    Back

    Pyridostigmine.
13. Front

    What is the main risk of non-selective beta blockade in asthma?
    Back

    Bronchospasm via beta-2 blockade.
14. Front

    How does prazosin lower blood pressure?
    Back

    Selective alpha-1 antagonism.
15. Front

    Which receptor does salbutamol target?
    Back

    Beta-2 adrenergic.