Digestive System Vocab quiz

Which of the following is NOT part of the upper GI tract?

• Esophagus

• Stomach

• Small intestine

• Mouth

What is the role of saliva in digestion?

• It breaks down fats into fatty acids and glycerol.

• It neutralizes stomach acid.

• It begins the chemical digestion of carbohydrates.

• It lubricates the esophagus to facilitate swallowing.

Mastication refers to:

• The movement of food through the intestines.

• The chemical breakdown of food.

• The mechanical breakdown of food by chewing.

• The absorption of nutrients.

A bolus is:

• A liquid form of digested food in the stomach.

• A semi-solid mass of food ready to be swallowed.

• A type of enzyme found in saliva.

• A nutrient absorbed by the intestines.

Peristalsis is:

• The process of absorbing nutrients through the intestinal walls.

• The rhythmic contractions that move food through the digestive tract.

• The chemical breakdown of food into nutrients.

• The expulsion of waste from the body.

Which part of the digestive system is primarily involved in the absorption of nutrients?

• Upper GI tract

• Lower GI tract

• Liver

• Gallbladder

The process of digestion begins in the:

• Stomach

• Mouth

• Small intestine

• Large intestine

The transformation of food into a bolus occurs in the:

• Stomach

• Mouth

• Esophagus

• Small intestine

The lower GI tract includes all of the following EXCEPT:

• Small intestine

• Large intestine

• Stomach

• Rectum

Peristalsis occurs in which parts of the digestive system?

• Only in the esophagus

• Only in the intestines

• Throughout the digestive tract

• Only in the stomach