Final answer:
Insoluble fiber, hormones, and water are key factors in stimulating peristalsis and maintaining water consistency in the digestive tract.
Step-by-step explanation:
Peristalsis is the muscular action responsible for mixing and moving materials along the intestine. It is stimulated and maintained by various factors:
- Fiber: Insoluble fiber, found in foods such as whole grains and vegetables, stimulates peristalsis and prevents constipation by promoting the contraction of smooth muscles in the gastrointestinal tract. This keeps food wastes moving and maintains water consistency.
- Hormones: Hormones like motilin and secretin regulate peristaltic movements and accelerate gastric emptying, which in turn stimulates intestinal peristalsis.
- Water: Water is essential for maintaining water consistency in the digestive tract. It helps keep food flowing smoothly and ensures friction-free movement of abdominal organs.