Structure and function of the body ap

I’m working on a anatomy writing question and need the explanation and answer to help me learn.

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 patientàblood 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 developed goose bumps and was sweating profusely. Currently, he reports feeling constipated. Explain the mechanics of Mr. Collinsàphysiologic reaction to the stressful experience of an automobile accident, and describe the division of the autonomic nervous system that is responsible for Mr. Collinsàsymptoms.