Human Digestive System Quiz

Which enzyme in saliva begins to digest carbohydrates in the mouth?

• Trypsin

• Amylase

• Pepsin

• Lipase

What is the opening inside the esophagus called?

• Capillary

• Villus

• Lacteal

• Lumen

What is the function of the pyloric sphincter?

• To prevent acid reflux

• To neutralize gastric acid

• To absorb nutrients

• To regulate bile production

Which organ produces bile and stores it in the gallbladder?

• Small Intestine

• Stomach

• Liver

• Pancreas

What is the function of the circular folds in the small intestine?

• To increase the contact surface with the food

• To absorb nutrients

• To produce bile

• To neutralize gastric acid

What is the main function of the microvilli in the small intestine?

• To store bile for future use

• To produce mucus for excretion

• To absorb nutrients and transport them to the blood capillaries

• To neutralize gastric acid

What is the main task of the bacteria in the large intestine?

• To produce bile

• To absorb nutrients

• To kill harmful germs and aid in the immune system

• To neutralize gastric acid

What is the name of the tissue that closes off the windpipe when you swollen so you do not choke?

• epiglottis

• esophagus

• ileum

• appendix

Almost 10 inches long, this structure connects the mouth to the stomach. What is it?

• ileum

• esophagus

• epiglottis

• appendix

What is the name of the organ that is the size of a tennis ball but can expand to the size of a football?

• pancreas

• lung

• intestines

• stomach