Discussion-Chapter 19
| Question # 48791 | Science | 1 year ago |
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| $5 |
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Please provide answers to the following questions. Grading will be done according to the rubric.
1. Describe the three layers that cover the heart. Where is the pericardial cavity relative to these layers?
2. What are the three primary sulci of the heart? What structures are within these superficial grooves of the heart?
3. What are the layers of the heart (in order) that a scalpel would pass through during dissection? What are the two names given to the outer layer of the heart wall?
4. What is autorhythmicity? Describe how nodal cells function as autorhythmic cells to serve as the pacemaker of the heart. What is the path of an action potential through the conduction system of the heart?
5.What three electrical events occur at the sarcolemma of cardiac muscle cells? Explain each event.
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