Digestive System

Question 1

What does the mouth do?

Answer 1

Mouth - Chews up food to make it easier to swallow and increases the surface area of food for better digestion.

Question 2

What does the Esophagus do?

Answer 2

Esophagus - Moves food from the mouth to the stomach through a series of muscular contractions called peristalsis.

Question 3

What does the stomach do?

Answer 3

Stomach - Secretes gastric juices that break down food into chyme, a semi-liquid mixture, and helps kill bacteria ingested with food.

Question 4

What does the small intestine do?

Answer 4

Small intestine - Absorbs nutrients from digested food particles into the bloodstream through finger-like projections called villi.

Question 5

What does the large intestine do?

Answer 5

Large intestine - Absorbs water from undigested food, forms feces, and helps eliminate waste from the body.

Question 6

Physical digestion

Answer 6

Occurs by chewing the food with our teeth (breaking it into smaller pieces)

Question 7

Chemical digestion

Answer 7

Occurs in our saliva which breaks down carbohydrates into simpler sugars.