What is the purpose of the digestive system?

• To exchange gasses in your body

• to get rid of waste in the body

• to break down food into nutrients the body can use

• to break down food into oxygen

______ is the watery liquid that begins to chemically break down food in your mouth.

• salivary glands

• saliva

• mucus

• water

Food stays in your _____ for hours where it mixes with acid.

• small intestines

• large intestines

• stomach

• esophagus

What do you call the organ that takes food from your mouth to your stomach?

• acid

• stomach

• esophagus

• villi

When food mixes with acid in your stomach, we call the new liquid _______.

• gross

• villi

• chyme

• stomata

Most digestion takes place in this organ. It is really long.

• small intestines

• large intestines

• esophagus

• pancreas

Food travels down your esophagus through a wavelike motion called ____.

• gravity

• falling

• peristalsis

• squeezing

Digestion begins in the _________________.

• liver

• mouth

• gallbladder

• stomach

Which shows the correct order of digestion?

• mouth, pharynx, stomach, small intestines, esophagus

• pharynx, esophagus, stomach, small intestines, large intestines

• mouth, esophagus, large intestines, stomach, small intestines,

• stomach, large intestines, esophagus, small intestines

Water from your undigested food is absorbed in the ___________________?

• small intestines

• stomach

• liver

• large intestines