Which muscular tube carries food from the mouth to the stomach?
AnswerEsophagus
The esophagus moves swallowed food down to the stomach.
Health · Facts & stats
Gut facts & stats
7 fact-checked facts about the gut and digestion, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
The large intestine's main job is to absorb what from leftover food?
AnswerWater
The large intestine absorbs water and salts, forming solid waste.
Going deeper
What are the wave-like muscle contractions that push food through the gut called?
AnswerPeristalsis
Peristalsis is a series of muscle squeezes that moves food along the digestive tract.
Which acid does the stomach produce to help digest food?
AnswerHydrochloric acid
Stomach cells secrete hydrochloric acid, which helps break down food and kill many microbes.
Which small organ stores bile and releases it into the intestine?
AnswerGallbladder
The gallbladder stores and concentrates bile, then releases it to help digest fats.
Expert level
Which organ produces bile?
AnswerLiver
The liver makes bile; the gallbladder only stores it.
Which enzyme in saliva begins breaking down starch?
AnswerAmylase
Salivary amylase starts splitting starch into sugars while food is still in the mouth.
Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round