The Digestive The Digestive SystemSystem

The Digestive The Digestive SystemSystem

What is the Function?

•Produces various chemicals to break down the food.

•Filters out harmful substances.

•Gets rid of solid wastes.

The Digestive TractWhere does food pass

through?– Mouth– Esophagus– Stomach – Small Intestine– Large Intestine

•Gall Bladder•Liver•Pancreas

TR

AC

T

Help

ers

What is the Esophagus

•the tube that connects your mouth to your stomach

What is the Stomach

• A stretchy bag that holds your food after you eat (temporary storage)

What is the function of your Stomach?

• Helps to chemically break food into smaller pieces so your body can use it for energy and nutrition

Stomach

Esophagus

What is the Small Intestine

• Connected to the stomach and large intestine.

• Tube that is 20 feet long.• Continues to digest food• Food stays in your small intestine

for 4 to 8 hours

Small Intestine

What is the Large Intestine

• Continues the digestion process – absorbs water and vitamins

• Tube that is 5 feet long

• Waste stays for 10 to 12 hours

Large Intestine

What is the function of the

Liver

• Factory for antibodies and bile• Largest organ WITHIN the body• Stores vitamins and sugars until

your body needs them• Food does NOT pass through this

organ

Liver

What does the Gall Bladder do?

• Storage tank for bile which helps your body break down and use fats

• Located under your liver

• Shaped like a pear

Gall Bladder

What is the function of the

Pancreas?• Helps you digest

food by breaking down sugars

• Produces insulin

•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

•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.

What are the 2 types of Digestion?

• Mechanical

• Chemical

What is Mechanical Digestion?

Mechanical

–Changes the physical form of food•Chew •Tear•Grind•Mash•Mix

What is Chemical Digestion?

• Chemical– Changes the chemical composition of

food with the aid of digestive enzymes– Breaks large molecules of food into very

tiny molecules that can be absorbed and used by the cells in the form of nutrition.