The Vital Role of G-Protein Coupled Receptors in Health and Disease

1. The Receptor here is G-Protein Coupled Receptor   2. 3. Functions : Epinephrine  Through its action on alpha-1 receptors, epinephrine induces increased vascular smooth muscle contraction, pupillary dilator muscle contraction, and intestinal sphincter muscle contraction. Other significant effects include increased heart rate, myocardial contractility, and renin release via beta-1 receptors. Strong emotions such as fear or anger cause