Predict Question 1: Pilocarpine is a cholinergic drug, an acetylcholine agonist. Predict the effect that pilocarpine will have on heart rate. Your answer: Pilocarpine will decrease heart rate. 1 Predict Question 2: Atropine is another cholinergic drug, an acetylcholine antagonist. Predict the effect that atropine will have on heart rate. Your answer: Atropine will increase heart rate. 2 Which of the following is true of epinephrine? 1
1/24/2020 PhysioEx Exercise 6 Activity 4 2/4 Experiment Data Solution Heart Rate (beats/min) ---- 62 Epinephrine 82 Pilocarpine 47 Atropine 72 Digitalis 43 ---- Epinephrine You correctly answered: It increases the heart rate and mimics the sympathetic nervous system. The final chemical modifier we will look at is digitalis (also known as digoxin and digitoxin and derived from the foxglove plant). Individuals with weakened hearts need to allow maximum time for venous return and increased stroke volume and would therefore most likely benefit from You correctly answered: increased force of contraction and decreased heart rate. 2
1/24/2020 PhysioEx Exercise 6 Activity 4 3/4 Pilocarpine Atropine Digitalis Post-lab Quiz Results
1/24/2020 PhysioEx Exercise 6 Activity 4 4/4 You scored 100% by answering 4 out of 4 questions correctly.
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- Fall '17
- Cindy Penney
- Neurotransmitter, session ID