VPT-0126
QUESTION
Predominant adrenergic receptors in heart are?
OPTIONS
(A) Alpha1-adrenergic
(B) Alpha2-adrenergic
(C) Beta1-adrenergic
(D) All of the above
ANSWER
(C) Beta1-adrenergic
EXPLANATION
Beta1-adrenergic receptors predominate in the heart and mediate increases in heart rate, conduction, and contractility. Alpha1 and alpha2 receptors are present in other tissues and may modulate cardiovascular function but are not the predominant cardiac receptors.
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Veterinary Pharmacology and Toxicology · 167 Questions
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