Sympathetic Nervous System — role?
Regulates involuntary organ functions during stress.
Neurotransmitters — main types?
Noradrenaline and adrenaline.
Adrenergic Receptors — types?
α1, α2, β1, β2, β3.
Sympathomimetic drugs — mechanism?
Activate adrenergic receptors directly or indirectly.
Sympatholytic drugs — action?
Block or inhibit sympathetic activity.
α1 receptor effect?
Vasoconstriction and mydriasis.
β2 receptor effect?
Bronchodilation and vasodilation.
Adrenaline — clinical use?
Anaphylaxis, cardiac arrest, severe hypotension.
Noradrenaline — primary indication?
Shock and severe hypotension.
Dopamine — dose effects?
Low: renal vasodilation; high: cardiac and vasoconstriction.
α1 agonists — example?
Phenylephrine.
β2 agonists — example?
Salbutamol.
α blockers — example?
Prazosin.
β blockers — example?
Propranolol.
Drug interaction — with MAO inhibitors?
Enhances sympathomimetic effects, risk of hypertensive crisis.
Drug interaction — with β blockers?
Can diminish sympathomimetic effects or cause adverse reactions.
Testez vos connaissances avec un QCM de 8 questions sur Sympathetic Nervous System Pharmacology.
1. What is the Sympathetic Nervous System primarily responsible for?
2. Who is credited with describing the role of neurotransmitters in the sympathetic nervous system in the provided course content?
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