The video explains the process of digestion, starting with ingestion in the mouth, where mechanical and chemical digestion begins. Food is then moved through the esophagus to the stomach, where further digestion occurs. The small intestine plays a crucial role in nutrient absorption, aided by villi. Finally, the large intestine absorbs water and processes undigested food with the help of bacteria.

What is the process of breaking down food into simpler substances called?

What role do enzymes play in digestion?

How does food travel from the mouth to the stomach?

What is chyme and where does it enter the digestive system?

What is the function of villi in the small intestine?