Case Study 9 100% correct answers aid grade ‘A’

2. Use the provided figure (top of next page) to recreate Tanya’s napkin image. Draw a graph depicting the typical action potential of an autorhythmic cell. Make sure to include a label and units for the x and y axes, the resting potential, the threshold potential, and make sure values drawn are representative of actual values 3. Now write out a description of the ion movement and channel opening and closing that are responsible for the above graph in autorhythmic cells. Describe what happens in words. Then, add ion types and movement (in or out; influx or efflux) on the graph you drew 4. Use the provided figure (bottom of next page) to recreate Tanya’s napkin image. Draw the standard action potential of a myocardial (cardiac) contractile cell. Make sure to include a label and units for the x and y axes, the resting potential, the threshold potential, and make sure 5. Now, write out a description of the ion movement and channel opening and closing that are responsible for the above graph in myocardial contractile cells. Describe what happens in Case Study 9 words. Then, add ion types and movement (in or out; influx or efflux) on the graph you drew. 6. What are the signs and symptoms that Tanya is experiencing? 7. Using the information provided by the NIH Medline website (), determine what Talei should do to prevent rapid spreading of the venom until the paramedics arrive. 8. Using the below table, hypothesize if the atracotoxin would impact each of the below. Answer Yes, No, or Possibly. Nerve Cell Skeletal Muscle Cell Autorhythmic Cell Contractile Cell Resting potential yes yes yes yes Depolarization portion of AP no no possibly no Repolarization portion of AP yes yes yes yes 9. Use the answers you came up with for Question 8 and sketch how the AP of each of the below cells would look after being exposed to atracotoxin. Then, beside each graph, briefly describe your reasoning. For this question, it is likely easiest to assume that the cell was at rest Case Study 9 and then exposed to the toxin (but you are welcome to think about different scenarios for the answers; if you choose a different scenario, please state that in your answer). 9a. nerve cell: 9c. autorhythmic cell: 9d. contractile cell: 10. What signs and symptoms is Julien experiencing? 11. Based on what the physician stated, how do you think this toxin would impact the action potentials and function of autorhythmic cells and the activity of the heart? State your hypothesis, and then draw a graph to accompany your predicted outcome