Please provide at least one source per case study to support your responses. Response to each case.

1. Mr. Stevens comes to your office complaining that he frequently loses his balance. He says that he feels like a drunken man when he walks and cannot even draw a straight line. Mr. Stevens will have to undergo testing before you determine a diagnosis, but what part of his brain do you think might be involved on the basis of the symptoms he reports? Why?

2. Mr. Collins is a 60-year-old patient who was in a car accident earlier in the day. After an examination, the physician determines that Mr. Collins sustained no physical injuries, although the patient's blood pressure and heart rate are elevated. Mr. Collins reports that at the time of the accident he felt a high level of fear and he noticed that he had goose bumps and was sweating profusely. Currently, he reports feeling constipated. Explain the mechanics of Mr. Collins's physiological reaction to the stressful experience of an automobile accident and describe the division of the autonomic nervous system that is responsible for Mr. Collins's symptoms.

3. Mrs. Armstrong has a 6-year-old son who was recently diagnosed with type 1 diabetes. She says that he stays inside a lot lately and that she is afraid to let him play outside because he might have a hypoglycemic reaction. What can you tell her about the importance of exercise for diabetic patients?