Digestive System Review 24-25

What is the main function of the digestive system?

• Circulates blood throughout the body

• Breaks down food, absorbs nutrients, and gets rid of solid waste

• Transmits nerve signals to and from the brain

• Protects the body from external harm

Which of the following is NOT a structure of the Alimentary Canal?

• Mouth

• Heart

• Stomach

• Esophagus

What is the process of food being placed in the mouth called?

• Propulsion

• Ingestion

• Digestion

• Absorption

What is the primary function of the small intestine?

• Absorption of nutrients

• Storage of bile

• Production of saliva

• Detoxification of blood

What is the role of the liver in digestion?

• Produces digestive enzymes

• Stores and concentrates bile

• Absorbs water and electrolytes

• Produces bile to break down fats

Where does peristalsis start in the alimentary canal?

• Mouth

• Stomach

• Pharynx

• Small intestine

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

• To mix saliva with food

• To carry food to the stomach

• To grind food up

• To absorb water

Which part of the alimentary canal uses gastric juices and hydrochloric acid to break down food?

• Mouth

• Pharynx

• Stomach

• Large intestine

What is the function of the cardioesophageal sphincter?

• Allows chyme to enter the small intestine

• Allows food to enter the stomach through the esophagus

• Insulates and cushions abdominal organs

• Forms large folds in the stomach

Where does the pyloric sphincter allow chyme to enter?

• The esophagus

• The large intestine

• The small intestine

• The liver