Adrenergics and Adrenergic Blockers I. Adrenergics A. Function: Adrenergics Adrenergic agonists sympathomimetics
stimulate SNS
B. Effects of Adrenergics at receptor sites :
Beta1 receptor
Beta2 receptor
Heart
Kidney
Smooth muscle ( gastrointestinal tract )
Lungs
Uterus
Liver
Increased heart contraction
Increased renin secretion
Bronchodilation
Activation of glycogenolysis Relaxation of uterine smooth muscle Increased blood sugar
Increased heart rate
Increased angiotensin
Decreased gastrointestinal tone and motility
Increased blood pressure