Q Please answer the following short answer questions. Answers should be clear and concise to address the main points of each topic as discussed in the subsequent weeks with a minimum of 250 words. An associated diagram/graph should be drawn (student-created) or included from the Internet (please include the URL) to help clarify any of your points. Utilize the checklist below to assist with completion of each essay answer: 10 points: The information is correct and the main points of the topic are explained appropriately. 5 points: A personal example or an application is included, which effectively help to strengthen the topic's points. 5 points: An appropriate diagram/graph is included to enhance the topic's points. The diagram/graph could be student-created or an image from the Internet (please include the URL). 5 points: There are no grammatical and/or spelling errors. 5 points: Each topic question is answered in a minimum of 250 words. Short Answer Topic #1: • Explain the action potential of a cardiac pacemaker cell. • Explain the action potential of a cardiomyocyte cell.