The Digestive System

When does digestion actually begin?

• When you think about food

• When the food reaches your stomach

• When you smell food and your mouth begins to salivate

• When you start to eat

What is the role of saliva in digestion?

• It makes food spicy

• It cools down the food

• It makes the food taste better

• It helps in the chemical breakdown of food

What is the function of the epiglottis?

• It helps in absorbing nutrients

• It prevents food from going down the wrong way

• It digests fats

• It stores extra food

Tags

NGSS.MS-LS1-7

How does food move through the esophagus?

• It slides down smoothly

• It doesn't; food bypasses the esophagus

• Through wavy contractions called peristalsis

• It is absorbed directly into the bloodstream

What is the shape of the stomach?

• Like the letter O

• Like the letter S

• Like the letter J

• Like the letter L

What does the pancreas produce to aid in digestion?

• Acid

• A juice that helps absorb fats and proteins

• Bile

• Saliva

How long is the small intestine?

• About 30 feet

• About 22 feet

• About 10 inches

• About 5 feet

What is the role of bile in digestion?

• It helps in making food spicy

• It stores undigested food

• It helps absorb fats in the bloodstream

• It cools down the food

Tags

NGSS.MS-LS1-7

What happens in the large intestine?

• It breaks down food chemically

• It removes most of the water from the mixture and forms solid waste

• It stores bile

• It absorbs the majority of nutrients