Transcript The Digestive System

The Digestive System
By Avery Amundson,Lauren Smith,Josie
Rodgers,Savannah Deuer
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Definition
The definition of the digestive system is the
group of organs and glands that work
together to digest food.
The Process
• First, you chew your food.
• Next, food is mixed with saliva.
• You swallow your food, and it goes down
your throat to the esophagus, to the
stomach.
• Food enters small intestine. In the small
intestine chemical digestion and absorption.
• Food enters large intestine. Most things that
enter the large intestine are waste products.
• These waste products are pushed out
through the anus.
Key Terms
• Digestion- The process by which your body
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breaks down the food you eat.
Nutrients-The substances in foods that your body
needs to function properly.
Urinary System-A group of organs that work
together to remove liquid waste from the blood.
Urine-A liquid waste made from waste products
mixed with excess water.
Saliva-As you chew, the food is mixed with a
liquid called saliva.
Excretion-The removal of liquid wastes from the
body.
Key Terms Continued
• Ureters-The wastes pass from the kidneys to the bladder by
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way of tubelike structures.
Bladder- A muscular, baglike organ that stores this liquid
waste until it can be released from the body.
Urethra- When the bladder is full, the waste leaves the
body through a single tubelike structure.
Urination-The release of this waste from the body.
Filtration-The microscopic filters remove the wastes from
the blood through a process called filtration.
Common Digestive Problems
• Heartburn-A burning
feeling in the esophagus
caused by a backflow of
acidic stomach contents.
• Diarrhea-An increase in
the amount and number of
times a person passes solid
waste.
• Constipation-A condition
in which passing solid
waste is difficult and
infrequent.
How the Parts Work
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Teeth- Chews food.
Salivary Glands- Produces saliva.
Throat and Esophagus- Passage way to the stomach.
Liver, gallbladder, and the pancreas release chemicals into the small
intestine.
• Small Intestine- Small intestine digests food.
• Large Intestine- Holds the waste products.
• Anus- Pushes waste products out of body.
Interesting Facts
• Nutrients are the substances in foods that
help your body function properly.
• Foods move through the small intestine by
the contractions of the smooth muscle of the
small intestine.
• No digestion happens in the large intestine.
Summary
• The digestive system is a group of organs
that helps process food that you eat. The
digestive system allows food to be broken
down while in the small intestine. The
digestive system helps us not have a
stomach aches at times.
Exit Ticket
• What is the small intestine?
• What does the esophagus do?
• What are the three organs that produce chemicals?
• If you answer correctly Lauren will give you
CANDY!!!! (Yes even in health class)
FUN FACTS!!!!!
• We eat 500 kilograms of food per year.
• 1.7 liters of saliva is produced per year.