Digestive System Review

A group of organs that work together to break down food is the

• Excretory System
• Nervous System
• Digestive System
• Cardiovascular System

The portion of the Digestive System that food passes through is called the

• stomach
• digestive tract
• digestive system
• esophagus

The type of digestion in which food is physically broken, crushed, and mashed is

• mechanical digestion
• chemical digestion

The type of digestion in which larger molecules that make up food are broken into smaller molecules that can pass into our cells.

• mechanical digestion
• chemical digestion

The body's hardest substance that makes up the outer layer of teeth is 

• bile
• bolus
• saliva
• enamel

Digestion begins with mechanical digestion taking place in the 

• stomach
• esophagus
• mouth
• small intestine

As you chew your food, what is produced in the mouth that mixes in to begin chemical digestion?

• saliva
• bile
• bolus
• gastric juices

When chewed food, or bolus, leaves your mouth, it is pushed down the esophagus by the muscles. What is this wave-like motion of the muscles squeezing the food through the digestive tract called?

• chyme
• bolus
• peristalsis
• digestion

The muscular digestive organ that breaks down food into chyme by use of muscles, enzymes, and acid is the

• pancreas
• stomach
• mouth
• small intestine

In the stomach, food is squeezed and mashed by the muscles and mixed with acid and enzymes to break it down into chyme. What type(s) of digestion takes place in the stomach?

• mechanical
• chemical
• both
• neither