5 Questions
What is the effect of adrenaline on blood vessels of the skin and splanchic area?
Vasoconstriction (α1-mediated)
What effect does adrenaline have on the skeletal muscles?
Dilation (β2-mediated)
How does adrenaline affect the heart's rhythmic functions?
Leads to extrasystole (decreases the refractory period, arrhythmogenic)
What is the effect of adrenaline on the urinary bladder?
Contraction of sphincter and trigone (α1-mediated)
What effect does adrenaline have on respiratory tract secretions?
Decreases secretions of bronchi (α2-mediated)
Test your knowledge of the pharmacological actions and class of adrenaline (epinephrine) in the sympathetic system with this quiz.
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