1. The Digestive System

2. The Pancreas
The pancreas is a gland organ in the digestive and endocrine system of vertebrates.
endocrine gland
hormones
insulin
glucagon
somatostatin
exocrine gland
secreting pancreatic juice
containing digestive enzymes
pass to the small intestine
These enzymes help in the further breakdown of the carbohydrates, protein, and fat in the chyme.

3. The Gallbladder
The gallbladder is a small pouch which is 7-10 cm long and 4 cm diameter that sits just under the liver(Dimensions Info, year not given).
stores bile produced by the liver
bile digest fats
Gallbladder isn’t essential
After meals
empty and flat.
Before a meal,
may be full of bile
about the size of a small pear.

4. The Mouth Different Parts Tongue Salivary Glands Teeth muscular organ
covered in pink tissue called mucosa
tasting, chewing and swallowing food
Salivary Glands
secrete saliva.
Teeth
Hard pieces of calcium used for chewing.
Consists
of the root (the part inside the gums)
and crown (the white part)

5. Pharynx A fibro-muscular passageway Also known as the throat Functions
conducts air to and from the trachea(windpipe) during respiration
extends from the base of the skull to the bottom layer of the cricoid cartilage
allows swallowed solids and liquids into the esophagus, or gullet

6. The Esophagus
muscular tube connecting the throat (pharynx) with the stomach.
The esophagus is about 8 inches long,
lined by moist pink tissue called mucosa
transports to the stomach from the mouth
food
liquids

7. Liver Description organs are under the liver
big organ
weighs about 3 pounds
reddish-brown
usually you cannot feel the liver, as it is protected by the rib cage.
the right side of the belly
organs are under the liver
the gallbladder
parts of the pancreas and intestines.
The liver has two large sections called the right and left lobes.
Main functions
filter blood coming from the digestive tract
detoxifying chemicals
metabolizing drugs
making proteins that are important for blood clotting and other functions

8. Stomach muscular organ located on the left side of the upper abdomen
receives food from the esophagus
As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter.
secretes
acid that digest food
enzymes that digest food
Rugae(muscle tissue) line the stomach
contract periodically, churning food to enhance digestion.
The pyloric sphincter
muscular valve that opens to allow food to pass from the stomach to the small intestine.
Followed by the stomach is the small intestine

9. Small Intestine Description
Lengthy
Narrow
spiraled tube
connected to the large intestine and the stomach.
Functions
main digestion processes
absorption of food that is held in the central and lower abdominal cavity
Cool Fact- it has the surface area of a tennis court!

10. Colon (Large Intestine)
Functions
Removing
Water
Salt
Some nutrients
All developing stool.
Muscles line the colon’s walls
constrict the products along
Billions of bacteria coat the colon and its contents, living in a fit balance with the body

11. Anus
is the opening where the gastrointestinal tract ends and exits the body
starts at the bottom of the rectum(last portion of the colon)
Circular muscles
external sphincter ani
form the wall of the anus to keep it closed.
Glands release fluid into the anus to keep its surface moist.

12. Sources
WebMD, LLC,2009, Digestive Disorders Health Center, Pancreas, The Gallbladder, The Stomach, The Liver, The Colon, Large Intestine,2009, accessed (August, ). Can be accessed from:
Insert blank with either pancreas, gallbladder, stomach, liver, colon.
Encyclopedia Britannica, Author not given, abdominal cavity, small intestine, year not given, accessed on (August 19, 2012) at
The Encyclopedia of Science, Author Not given and Year Not Given, Gall Bladder, accessed (August 19, 2012) at