Which of the following types of adrenergic receptors are found on cardiac muscle fibers where their activation stimulates increased force and rate of contraction of the heart? A)α₁-adrenergic B)α₂-adrenergic C)β₁-adrenergic D)β₂-adrenergic E)β₃-adrenergic

Question

Quizplus · Accepted Answer

β1-adrenergic receptors are found on cardiac muscle fibers and their activation stimulates increased force and rate of contraction of the heart. Therefore, option C is the correct answer. Options A, B, D, and E are all incorrect as they do not refer to the specific subtype of adrenergic receptor found on cardiac muscle fibers.

Which of the Following Types of Adrenergic Receptors Are Found