ANATOMY

Detailed explanation-1: -The stomach muscles churn and mix the food with digestive juices that have acids and enzymes. These juices help break up food into much smaller pieces.

Detailed explanation-2: -The lining of the stomach produces gastric juices that contain protein-digesting enzymes. Peristaltic movements of the stomach wall mix and churn the food with the gastric juices. This action further breaks up the food particles, forming a milky fluid known as chyme.

Detailed explanation-3: -Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.

Detailed explanation-4: -The stomach lining contains muscles which physically squeeze and mix the food with strong digestive juices (’churning’) Food is digested within the stomach for several hours and is turned into a creamy paste called chyme. Eventually the chyme enters the small intestine (duodenum) where absorption will occur.