SNS Receptor Actions Flashcards
What does an alpha1 receptor do to the eye?
Mydriasis
What does an alpha1 receptor do to the blood vessels?
Vasoconstriction
What does an alpha1 receptor do to the heart?
Increase force of contraction
What does an alpha1 receptor do to the sweat glands?
Increase secretion
What does an alpha1 receptor do to the sphincters?
Contraction
What does an alpha1 receptor do to the kidneys?
Decrease renin release
What does an alpha1 receptor do to the GI?
Decrease motility
What does an alpha2 receptor do to the platelets?
Increase aggregation
What does an alpha2 receptor do to the blood vessels?
Vasoconstriction
What does an alpha2 receptor do to the fat cells?
Inhibit lipolysis
What does an alpha2 receptor do to the GI?
Decrease secretion
What does a ß1 receptor do to the heart?
Increases force/rate of contraction
What does a ß1 receptor do to the kidneys?
Increase renin release
What does a ß2 receptor do to the eye?
Ciliary muscle relaxation
What does a ß2 receptor do to the lungs?
SM relaxation
What does a ß2 receptor do to the detrusor/uterus?
SM relaxation
What does a ß2 receptor do to the SkM?
Increase K+ uptake
What does a ß2 receptor do to the liver?
Inhibit glycogenolysis and gluconeogenesis
What does a D1 receptor do to the kidneys?
Increase renal blood flow
What organs are affected by alpha1 receptors?
Eye, vessels, heart, seat glands, sphincters, kidneys, GI
What organs are affected by alpha2 receptors?
Platelets, vessels, fat cells, GI
What organs are affected by ß1 receptors?
Heart, kidney
What organs are affected by ß2 receptors?
Eye, lung, detrusor, uterus, SkM, liver
What organ is affected by D1 receptors?
Renal vasculature
