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34 Cards in this Set

  • Front
  • Back
SA node
β₁
↑ heart rate
Heart: atria
β₁
↑ contraction
↑ conduction velocity
Heart: ventricle
β₁
↑contraction
↑conduction velocity
Arterioles: skin and mucosa
α₁
constrict

β₂
relax (minor)
Arterioles: liver and skeletal muscle
α₁
constrict (minor)

β₂
relax (predominates)
Arterioles: kidney and other abdominal viscera
α₁
constrict

α₂
constrict (in some beds)

β₂
relax (minor)
Coronaries and cerebral blood vessels
α₁
constrict (local regulation predominates)

β₂
relax (local regulation predominates)
Veins
α₁
constrict

α₂
constrict
Bronchial smooth muscle
β₂
relax
Intestinal smooth muscle: nonsphincter
α₁
relax

β₂
relax
Intestinal smooth muscle: sphincter
α₁
contract
Spleen capsule
α₁
contraction of smooth muscle
Uterus
α₁
contract

β₂
relax
Seminal tract
α₁
contract
Urinary bladder: detrusor
β₂
relax
Urinary bladder: sphincter and trigone
α₁
contract
Eye: iris (radial muscle)
α₁
contract
Eye: ciliary muscle
β₂
relax
Eye: ciliary epithelial cells
β₁
↑ aqueous humor
Eye: trabecular meshwork
β₂
↑ outflow of aqueous humor
Skeletal muscle
β₂
↑ contractility
↑ K⁺ uptake
↑ glycogenolysis
Platelets
α₂
aggregation
Mast cells
β₂
inhibition of granule release
Salivary glands
α₁
K⁺ and H₂O secretion

β₁
amylase secretion
Pancreas: acini
α₁
decreased secretion
Pancreas: β-cells of islets
α₂
decreased secretion of insulin
Pancreas: α-cells of islets
β₂
increased secretion of glucagon (slight)
Kidney
β₁
increased renin release
Liver
α₁
glycogenolysis (K⁺ release)

β₂
glycogenolysis
Fat
β₃
lipolysis
Skin: pilomotor muscles
α₁
contract
Skin: sweat glands
α₁
localized secretion
Sympathetic nerve endings
α₂
inhibit NE release
Hypothalamus
α₂
inhibit activity of efferent sympathetic outflow to peripheral vascular smooth muscle