The Digestive System

What does the stomach do?

• Sends signals to your brain

• Adds digestive juices to the food

• Protects your lungs

• Pumps blood to your heart

What breaks down food in stomach?

• acid 

• salivary glands

• movement 

• time

How long is an adult’s small intestine?

• 30 miles

• 30 inches

• 22 feet

• 17 yards

When they reach the stomach, mashed-up food particles mix with:

• Guava juice

• Gastric juices

• Mucous

• Bile

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Why do we need to break apart the food we eat?

• So it can fit in our stomach

• So our bodies can use the nutrients

• So liquids can be separated from solids

• So our bodies enzymes can have something to do

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Waste foods are separated from solids and liquids in the __________________.

• small intestine

• large intestine

• liver

• stomach

The process by which the body breaks down food so that it can be used for energy.

• Digestion

• Respiration

• Circulation 

• Absorb

What does our body receive from food?

• organs

• saliva

• nutrients

• cells

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What does the mouth do?

• Break down the food to make it easier to swallow

• Slows down jaws

• Nothing

• Neither

A fluid in the mouth that helps digest food.

• Nutrients

• Absorb

• Digestion

• Saliva