a. What was the main cause of Elizabeth's loss of consciousness? What other factors may have contributed?
b. Describe how these factors affected Elizabeth's body on a cellular and molecular level. How did this lead to loss of consciousness?
c. Fainting, or syncope, is not uncommon and generally not harmful. Roughly 1/3 of people in the U.S. will faint at least once in their lifetime. In this case, Elizabeth recovers and is able to continue through the rest of the story without similar problems. However, in some cases syncope can be a symptom of more serious medical problems. What types of medical problems could cause fainting? Explain in physiological terms.