AP BIOLOGY

Detailed explanation-1: -The large pieces of food that are ingested have to be broken into smaller particles that can be acted upon by various enzymes. This is mechanical digestion, which begins in the mouth with chewing or mastication and continues with churning and mixing actions in the stomach.

Detailed explanation-2: -Mechanical digestion begins in your mouth with chewing, then moves to churning in the stomach and segmentation in the small intestine. Peristalsis is also part of mechanical digestion.

Detailed explanation-3: -Mechanical Digestion The churning of your stomach doesn’t just mix partially digested food with digestive juices. It also helps physically break down your food.

Detailed explanation-4: -Physical Digestion in the Stomach This contracting and relaxing of the stomach is called churning. It serves two purposes in digestion. One, it helps to further break down the food mechanically into even smaller pieces, and two, it helps to mix the enzymes and acids with the food.

Detailed explanation-5: -Stomach churning is an uncomfortable, agitated sensation caused by a variety of stomach and intestinal issues. These can range from indigestion to viruses. If you often experience stomach churning, you may have a medical condition that requires treatment.