Answer :
Final answer:
Muscular waves in the stomach mix and churn the contents of a meal with gastric juices, facilitating digestion.
Explanation:
Muscular waves in the stomach, known as peristalsis, mix and churn the contents of a meal with gastric juices. These gastric juices include hydrochloric acid and digestive enzymes that break down proteins, fats, and carbohydrates present in the meal. The churning action helps to mechanically break down the food into smaller particles, allowing for easier digestion and absorption of nutrients.
Learn more about Digestion here:
https://brainly.com/question/29028908