A person has an anaphylactic reaction and uses his epi-pen. What type of the receptor is responsible for the lifesaving effect of epinephrine injection?
A) G protein coupled receptor
B) receptor tyrosine kinase
C) cytokine receptor
D) ion channel receptor

Question

Quizplus · Accepted Answer

Epinephrine stimulates G protein coupled receptors, specifically the alpha- and beta-adrenergic receptors. This leads to the dilation of airways, relaxation of smooth muscle, and increased heart rate and blood pressure, all of which can counteract anaphylactic reactions.

A Person Has an Anaphylactic Reaction and Uses His Epi-Pen