What`s For Lunch? - Etiwanda E
Transcript What`s For Lunch? - Etiwanda E
What’s For Lunch?
Digestion as a Process
By: Megan Gardner
Time to Eat
Digestion begins in the mouth
Bite your food
Chew food with your teeth
Saliva enters the mouth from the glands
in your mouth
Time to slide
Food slides down the esophagus
Muscles help push the food down the
esophagus (wave-like motion called
Mucus lines the esophagus to help the
Mush and Mash
Food enters the stomach
Digestive juices (acid) mixes with the
Stomach muscles mash and churn the
Food becomes a thick, soupy, liquid
Small (but longer)
Where most digestion takes place
Villi absorb nutrients and bring them to
Nutrients go to the rest of the body
through the bloodstream.
Large (but shorter)
Any undigested material enters the large
Stays in here for 24-48 hours
Takes absorbs any left over water or salt
Food is then eliminated through the anus.
Carbohydrates are broken down by the
Food stay in your stomach for 2-6 hours.
Gravity helps push the food down.
Where does digestion begin?
Where does your food go after you
What mixes with the food in the
Where does most digestion take place?
What happens to the food once it leaves
the large intestine?
California Department of Education
Fifth grade science standards
Picture of a person eating (the beginning of digestion)
Picture of Digestive System
Picture of an elephant mouth
Picture of the esophagus
Picture of a stomach
Diagram of the small intestine
Picture of the large intestine