3/1/2020 PhysioEx Exercise 6 Activity 4 1/4 PhysioEx Lab Report Exercise 6: Cardiovascular Physiology Activity 4: Examining the Effects of Chemical Modifiers on Heart Rate Name: Madison Penna Date: 1 March 2020 Session ID: session-d65f02f1-f695-1c51-3e32-d45f0ad3f836 Pre-lab Quiz Results You scored 75% by answering 3 out of 4 questions correctly. Experiment Results Predict Questions Stop & Think Questions The parasympathetic nervous system releases __________ to affect heart rate. You correctly answered: acetylcholine. 1 A cholinergic drug that worked the same as acetylcholine would You correctly answered: be an agonist and decrease heart rate. 2 Norepinephrine affects the heart rate by Your answer: increasing the rate of depolarization and decreasing the frequency of action potentials. Correct answer: increasing the rate of depolarization and increasing the frequency of action potentials.
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