View Static Version
Loading

The Digestive System 7th grade

basic info:

PARTS OF DIGESTIVE SYSTEM

MOUTHS

tongue and teeth work together to break up the food

a watery liquid called SALIVA makes the food wet and soft

it has a chemical, that helps digest the food (break down the starch in food)

ESOPHAGUS

After swallowing the food goes down through pharynx into a tube called the esophagus and this tube goes into the stomach.

STOMACH

It is a large muscle that stirs up the food.

More liquids and chemical help digest the food

mechanical digestion and chemical digestion

SMALL INTESTINE

After the food has been ground and stirred in the stomach it moves to the intestines.

The food is mixed with more chemicals and liquids.

The pieces of food become very small and we call them

NUTRIENTS

They are absorbed into the blood which carries them to all parts of the body.

Blood passes through the body and goes through another organ in the digestive system.

We call this organ LIVER. It is on the right side of the body near the lowest rib

One job of the liver is to clean the blood. It also sends liquids and chemicals to the small intestine.

Some of the food is left in the small intestine and cannot be digested.

LARGE INTESTINE

It is then passed to the large intestine and leaves the body through a little hole called ANUS.

Accesory organs:

liver
pancreas

The pancreas secretes hormones (such as insulin) into your blood and also secretes enzymes to help break down fats, proteins and carbohydrates.

gall bladder

Its main job is to store the bile that the liver secretes.

The digestive system is amazing: it takes the foods we eat and breaks them into smaller components that our bodies can use for energy, cell repair and growth.
NextPrevious