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WHAT DO YOU KNOW ABOUT IT?
How long is it?
What is the purpose of the D.S.?
How long does it take to digest your food?
DIGESTIVE SYSTEM
Mouth
Is Mechanical
digestion
 Teeth –

Helps you to
swallow
Saliva water, breaks
down the
food through
 ENZYMES –

break down
__________
into glucose
1. Balls
food to the
back of the
________
2. Helps
you
swallow
3.
________
tongue
pharynx
Opening to
the
__________
Esophagus
________long
Muscles push food
down..
Like a _______
EPIGLOTTIS
_______ that blocks
food and water from
going into the
__________.
Stomach
Is Chemical Digestion
Lined in
____________
(Protects From _______)
Growling is Empty –
Stomach Muscles are
Contracting
GASTRIC JUICES
1.HYDROCHLORIC
–
_________:
Protects you from bacteria
2. ENZYMES:
Break down proteins and carbs into
something …called
BREAKS THE FOOD INTO CHYME
CHYME GOES TO THE
____________________
MAIN FUNCTION OF THE
STOMACH… BREAK THE FOOD
DOWN…LIKE A ________
PROCESSOR
SMALL INTESTINE
____ - ____ FEET LONG
1 inch in diameter
Function:
1 _________ Digestion
2 Absorption of Nutrients
are completed
Villi
= Tiny fingers
contains tiny _______
vessels(capillaries) absorb
nutrients into the blood
stream
____ feet long
2.5 inches in
diameter
Large intestine
Fiber and other
materials that are not
broken down go here
and absorbed
Water absorbed into
intestinal wall
Chyme …becomes FECES
Rectum
anus
Final phase of
the digestive
system.
________
comes out of
the rectum
The filter system of
the body.
Kidneys filter
______ out of the
blood and most
liquid is re-absorbed
into the blood
stream.
is not useful
and goes to the
bladder as urine.
_______________
Kidneys
LIVER
It acts as a warehouse where the
blood takes all the nutrients.
Weights _________pounds
Produces _____ = breaks down fat
(remember fat does not dissolve in blood or
water)
BILE
Made in the Liver
1.
Sent to the ______________
2. To the small Intestine and breaks down fat.
3. Then takes _________ to the walls of the
Sm. Int. and absorbed into the blood stream
Tips to take care
of D.S.
1.
2.
3.
4.
Chew __________
Brush and Floss
______________
Nutritious food…fiber foods
