Digestive System

Front

What is the main function of the stomach?

Back

The stomach's main function is to break down food using acids and enzymes, turning it into a semi-liquid substance called chyme.

Front

What is the esophagus?

Back

The esophagus is a muscular tube that connects the throat (pharynx) with the stomach, transporting food after swallowing.

Front

What protects the stomach lining from its own acid?

Back

The stomach is protected by a layer of mucus that coats its lining, preventing damage from the acidic environment.

Front

What is saliva and its role in digestion?

Back

Saliva is a fluid produced in the mouth that contains enzymes to help break down food and lubricate it for easier swallowing.

Front

What are the three main processes of digestion?

Back

The three main processes of digestion are digestion (breaking down food), absorption (taking nutrients into the body), and elimination (removing waste).

Front

What is the role of pepsin in the stomach?

Back

Pepsin is an enzyme in the stomach that helps digest proteins into smaller peptides.

Front

What is the small intestine's function?

Back

The small intestine is responsible for the majority of nutrient absorption from digested food.

Front

What is the difference between mechanical and chemical digestion?

Back

Mechanical digestion involves physically breaking down food (e.g., chewing), while chemical digestion involves breaking down food with enzymes and acids.

Front

What is chyme?

Back

Chyme is the semi-liquid mixture of food and digestive juices that is formed in the stomach and moves into the small intestine.

Front

What is the role of the liver in digestion?

Back

The liver produces bile, which helps emulsify fats, making them easier to digest and absorb.