Understanding the Digestive System

What is the primary function of the digestive system?

• To circulate blood throughout the body

• To break down food so that it can be used by the body as energy

• To protect the body from infections

• To support the body's structure

Which part of the digestive system is responsible for moving food from the mouth to the stomach?

• Mouth

• Pharynx

• Esophagus

• Stomach

Where does the initial process of digestion begin?

• Stomach

• Esophagus

• Mouth

• Pharynx

What is the role of the stomach in the digestive system?

• To chew food

• To move food to the esophagus

• To receive food that has been swallowed and begin to digest it

• To absorb nutrients into the bloodstream

Which part of the digestive system is located between the back of the nose and the esophagus?

• Mouth

• Pharynx

• Stomach

• Esophagus

What is the function of the mouth in the digestive system?

• To absorb nutrients

• To break down food mechanically and chemically

• To transport food to the stomach

• To store food

Which of the following is NOT a function of the pharynx?

• Assisting in swallowing

• Connecting the mouth to the esophagus

• Producing digestive enzymes

• Serving as a pathway for air and food

What is the primary function of the esophagus?

• To digest food

• To transport food from the mouth to the stomach

• To absorb nutrients

• To produce saliva

Which organ is responsible for the initial breakdown of proteins?

• Mouth

• Pharynx

• Esophagus

• Stomach

What is the main purpose of the digestive system in relation to energy?

• To store energy in the form of fat

• To convert food into energy that can be used by the body

• To eliminate waste products from the body

• To regulate body temperature