Each of these statements is True EXCEPT one.Identify the exception.
A) Monoamine oxidase is the main enzyme responsible for the degradation of catecholamines.
B) β₁ receptors respond equally well to both epinephrine and norepinephrine.
C) β₂ receptors are not innervated by sympathetic neurons, so are more sensitive to epinephrine, delivered via the blood.
D) Activation of α receptors opens Na⁺ channels in the membrane.

Question

Quizplus · Accepted Answer

Activation of α receptors leads to the opening of Ca²⁺ channels, not Na⁺ channels.

Each of These Statements Is True EXCEPT One