The Digestive The Digestive SystemSystem

The Digestive The Digestive SystemSystem

Ms. PryorMs. Pryor

Components• Mouth• Esophagus• Stomach• Small Intestine• Large Intestine• Rectum• Gall bladder• Liver• Pancreas

Mouth• Where the digestive process

begins• Your teeth chew your food in what

we call mechanical break down.• Saliva (spit) and your tongue help

break down the food

Esophagus• the tube that connects your

mouth and your stomach• Your food travels from your

mouth to the esophagus• Take a big swallow Do you feel

your Esophagus clenching?• (Hand out bags and bread)

Stomach• A stretchy bag that holds your food after

you eat• Uses digestive juices to break down food

even more before entering the Small intestine

• What would happen if you continually take a damp piece of food and turn/mix it with orange juice? This is what happens in your stomach.

Stomach

Esophagus

Small Intestine

• Tube that is 20 feet long.

• Continues to digest food

• Food stays in your small intestine for 4 to 8 hours!

Small Intestine

Large Intestine• Tube that is 5 feet long

• Gets waste from small intestine

• Waste stays for 10 to 12 hours

Large Intestine

Rectum• Need I say

more??• It’s the end of the

road!!

Gall Bladder• Storage tank for bile (a greenish-

yellow liquid) that helps your body break down and use fats

• Located under your liver

• Shaped like a pear

Gall Bladder

Liver• Factory for antibodies and bile

• Stores vitamins and sugars until your body needs them

Liver

Pancreas• Helps you

digest food by breaking down sugars

Functions• Digest the food we eat

• Take the nutrients out of your food so your body can use it

Healthy Habits

•Eat foods that are high in fiber like fruits and vegetables

•Drink plenty of water

•Chew your food completely before you swallow

Avoid foods high in fat

Interesting Facts•Food is in your digestive system for about 24 hours

• What haven youeaten in the last24 hours that has not yet been digested?

•Your stomach stretches when you eat like a balloon being filled with air

Have you ever felt your stomach get larger after a big meal???

•You have a trap door called the epiglottis to cover your windpipe when you swallow.

•Your stomach mashes your food the way a baker kneads dough for bread.

SummaryFunctions

• Digests food

• Absorbs nutrients for the body

Components• Esophagus• Stomach• Small intestine• Large intestine• Pancreas• Liver• Gall Bladder

SummaryHealthy Habits

• Eat high fiber foods• Drink lots of water• Chew food well• Avoid high-fat foods

The Journey Your Food Takes!!

• Mouth Esophagus Stomach Small Intestine Large Intestine Rectum

• http://www.youtube.com/watch?v=OYWVbt6t2mw

What did you learn??• Where does the digestive system

begin?• How long does waster stay in the

large intestine?• What is your gallbladder shaped like?• What are some healthy habits we can

do?