Which of the following adrenergic receptors are found abundantly in the myocardium?

Question

Quizplus · Accepted Answer

The β1 adrenergic receptor is found abundantly in the myocardium and is primarily responsible for the positive chronotropic, inotropic, and lusitropic effects of catecholamines on the heart. The α1 and α2 adrenergic receptors have a limited presence in the myocardium and are involved in the regulation of vascular tone and contraction of smooth muscle cells. Therefore, options A, B, and D are not correct choices.

Which of the Following Adrenergic Receptors Are Found Abundantly in the Myocardium