KROK 1 Stomatology 2015 – Question 190 · KROK (Dentistry)
In course of an experiment researchers stimulate a branch of a sympathetic nerve that innervates heart. What changes in cardiac activity should be registered?
- A. Increase in heart force
- B. Increase in arterial pressure
- C. Increase in heart rate
- D. Decrease in heart force
- E. Increase in heart rate and heart force
Hint
Recall what effects noradrenaline acting on beta-1 receptors exerts on the sinoatrial node and on the working myocardium.
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