Questions: Question 3 Which division increases saliva production? The Sympathetic Division The Parasympathetic Division Question 4 Which division would inhibit the smooth muscle in the walls of the GI tract (leading to less gastrointestinal motility) and excite the sphincter muscles of the GI Tract? The Parasympathetic Division The Sympathetic Division

Question 3:
The answer is the second one: The Parasympathetic Division.
Explanation: The parasympathetic division of the autonomic nervous system is responsible for stimulating activities that occur when the body is at rest, such as digestion and saliva production. It promotes the secretion of saliva to aid in digestion.

Question 4:
The answer is the second one: The Sympathetic Division.
Explanation: The sympathetic division of the autonomic nervous system is responsible for the "fight or flight" response. It inhibits the smooth muscle in the walls of the gastrointestinal (GI) tract, leading to decreased gastrointestinal motility, and excites the sphincter muscles to prevent the passage of food, as part of preparing the body for stressful situations.