Understanding the Digestive System

What is the primary function of the digestive system?

• To protect the body from infections

• To provide oxygen to the cells

• To circulate blood throughout the body

• To break down food into energy

Where does the digestion process begin?

• In the small intestine

• In the mouth

• In the stomach

• In the esophagus

What role does saliva play in digestion?

• It absorbs nutrients

• It churns food

• It begins to chemically break down food

• It eliminates waste

What is the function of the esophagus?

• To absorb nutrients

• To store bile

• To connect the mouth to the stomach

• To produce digestive enzymes

What happens to food in the stomach?

• It is chewed into smaller pieces

• It is turned into solid waste

• It is absorbed into the bloodstream

• It is mixed and mashed with acids and enzymes

What is the primary function of the small intestine?

• To store food

• To absorb nutrients into the blood

• To produce bile

• To eliminate waste

What are villi and what is their function?

• They are acids that digest proteins

• They are finger-like structures that absorb nutrients

• They are muscles that churn food

• They are enzymes that break down food

What is the role of the large intestine?

• To absorb nutrients

• To break down fats

• To turn leftover food into solid waste

• To produce digestive enzymes

What does the liver produce to aid in digestion?

• Acids

• Enzymes

• Bile

• Saliva

What is the function of the pancreas in digestion?

• To produce bile

• To store nutrients

• To produce enzymes that digest proteins, fats, and sugars

• To absorb water