Adrenergic Receptors

Question 1

Alpha-1

Answer 1

1) blood vessels - vasoconstriction2) Pupillary dilator muscle - contraction (DILATES)3) Pilomotor smooth muscle - contraction (hairs)4) Prostate - contraction (alpha-1-A)5) Heart - increases force of contraction

Question 2

Alpha-2

Answer 2

1) POST synaptic adrenoceptors - decreases SNS outflow (alpha-2-A)2) Platelets - aggregation3) PRE synaptic adrenergic & cholinergic nerve terminals - inhibition of transmitter release (alpha-2-A)4) Blood vessels - vasoconstriction (alpha-2-B)

Question 3

Beta-1

Answer 3

1) Heart - increases HR, contractility, AV node conduction2) Kidney - increases renin release

Question 4

Beta-2

Answer 4

1) Respiratory, uterine, blood vessels - relaxation (vasodilation)2) Skeletal muscle - potassium uptake3) Human liver - glycogenolysis (increases glucose)4) Heart - increases HR, contractility, AV node conduction

Question 5

Beta-3

Answer 5

Fat cells - lipolysis

Question 6

DA-1

Answer 6

Smooth muscle - dilates renal blood vessels