1. Describe the location and role of the parasympathetic nervous system in defecation. 2. a. Explain the purpose of the enterogastric reflex. b. Describe two results of an excessively rapid flow of...

1. Describe the location and role of the parasympathetic nervous system in defecation.

2. a. Explain the purpose of the enterogastric reflex.

b. Describe two results of an excessively rapid flow of chyme through the digestive tract.

3. a. Name the common electrolytes lost because of diarrhea.

 b. State the major effect on the body of sodium loss and potassium loss.

c. State and explain what arterial blood gas levels may be expected in the presence of severe vomiting.