Digestive System Quiz

What is the function of the digestive system?

• Absorbs nutrients from food

• Eliminates waste from the body

• Pumps blood throughout the body

• Controls body temperature

Which of the following is NOT a component of the digestive system?

• Liver

• Gallbladder

• Lungs

• Pancreas

What is the purpose of the outer layer (serous layer) of the GI tract?

• Protects the GI tract

• Contracts and expands to move food

• Contains various vessels, glands, and nerves

• Secretes mucus and digestive enzymes

What is the function of peristalsis in the digestive system?

• Breaks down proteins, sugars, and fats

• Protects the tissues of the canal

• Moves food along the GI tract

• Absorbs nutrients into the bloodstream

Which layer of the GI tract contains loose connective tissue and various vessels, glands, and nerves?

• Serous layer

• Muscle layer

• Submucosa

• Mucosa

What is the function of the mucosa layer in the GI tract?

• Protects the GI tract

• Contracts and expands to move food

• Contains various vessels, glands, and nerves

• Secretes mucus and digestive enzymes

What is the process called when food is chewed by the teeth?

• Peristalsis

• Mastication

• Digestion

• Absorption

What is the purpose of the epiglottis in the digestive system?

• Secrete saliva to break down food

• Cover the trachea when swallowing food

• Contract and close the entrance to the stomach

• Mix food with gastric juice in the stomach

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

• Mixes food with gastric juice

• Absorbs nutrients into the bloodstream

• Connects the throat with the stomach

• Stores bile until it is needed for digestion

What is the role of pepsin in the stomach?

• Breaks down proteins

• Absorbs nutrients into the bloodstream

• Stores glucose and certain vitamins

• Secretes bile for digestion