22/01/2020, 9 : 41 PM PhysioEx Exercise 6 Activity 4 Page 1 of 5 PhysioEx Lab Report Exercise 6: Cardiovascular Physiology Activity 4: Examining the E ff ects of Chemical Modi fi ers on Heart Rate Name: Daelyn Glasgow- Thomas Date: 22 January 2020 Session ID: session-569cb7b9-db3c-509d-705e-36c51b76a1b8 Pre-lab Quiz Results You scored 75% by answering 3 out of 4 questions correctly. Experiment Results Predict Questions The parasympathetic nervous system releases __________ to a ff ect heart rate. You correctly answered: acetylcholine. 1 A cholinergic drug that worked the same as acetylcholine would Your answer: decrease heart rate. Correct answer: be an agonist and decrease heart rate. 2 Norepinephrine a ff ects the heart rate by You correctly answered: increasing the rate of depolarization and increasing the frequency of action potentials. 3 The __________ receptor binds norepinephrine and epinephrine.
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