Digestion1.notebook
November 24, 2014
“A”
Nov 18­10:26 AM
Nov 18­10:29 AM
Well do you
want to be this?
A
Or this?
B
“B”
Nov 18­10:30 AM
Nov 18­10:31 AM
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Digestion1.notebook
Handouts! Get Your Handouts!
LABEL THE HANDOUT ACCORDING TO THE NUMBERS IN “ ( ) “ AND PLACE THE VOCABULARY IN Green ON THE BACK OF THE HANDOUT. Nov 18­11:01 AM
November 24, 2014
The process of breaking down
food into its usable parts is
called digestion. There are
two types of digestion:
Chemical digestion – using
chemicals to break down food
and
Mechanical digestion – physically breaking down food
Digestion
Nov 18­10:44 AM
Digestion begins in the mouth
Saliva is the chemical in the mouth
that begins the process of breaking down food.
2 point exercise your brain:
(in complete sentences)
1. Where does digestion begin?
Your teeth, tongue and lips continue the digestive process by mechanical digestion.
Nov 18­11:00 AM
2. What are the two types of digestion taking place in the human body?
Nov 17­8:33 AM
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Digestion1.notebook
Peristalsis
Peristalsis ­ the “wave­like” muscle
contractions that push
the food throughout
the digestive system.
This keeps the food
moving in one direction.
November 24, 2014
Mouth and Salivary Glands
• (6) Digestions Begins in the mouth
• (1) Salivary Glands moisten the food so it is easier to swallow.
• Saliva contains digestive enzymes that begin the process of breaking down food. (see spit is good for something)
Nov 18­11:03 AM
Nov 18­11:04 AM
( 7) Esophagus
(8) Stomach
Your esophagus is a soft tube that carries
the food from your mouth to your stomach.
It takes about 7 seconds
for food to travel that
distance.
The stomach is an empty muscular sac that
helps continue the process of digestion. The
stomach muscle This allows the stomach acids to coat the food and continue the chemical digestion.
Nov 18­11:06 AM
Nov 18­11:07 AM
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Digestion1.notebook
THINK ABOUT IT?
If the stomach is a muscle
and so is the meat we eat,
how come the stomach doesn’t
eat itself?
Nov 18­12:28 PM
Digestion Continues......
Please place all the remaining notes in your notebook. All notes today will be in green.
1. Take a look at the bottom half of the digestive system
2. Place notes in notebook
3. Demonstrate PERISTALSIS with Cheetoes Nov 18­10:05 AM
November 24, 2014
Mucus in the stomach protects
it from digesting itself. A break in that lining creates an
“ulcer”. Ulcers can be painful
and dangerous, and any pain
in the stomach should not be
ignored. Nov 18­12:29 PM
DIGESTIVE HELPERS
(organs that help with the digestive process)
• (2) Liver – creates bile, a chemical that breaks up fat.
• (3) Gallbladder – stores bile
until you need to use it.
Nov 18­10:09 AM
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Digestion1.notebook
November 24, 2014
• (9)Pancreas – creates pancreatic juice to help break down food and insulin to control sugar levels in the blood stream.
Nov 18­10:12 AM
Villi are the many
“finger­like” projections
in the small intestine.
They allow for a larger
surface area where
the body can absorb
nutrients from the passing
food.
Nov 18­10:16 AM
(5) Small Intestine
(getting down to business now)
Most of digestion takes
place in the small intestine.
It is here that digestion continues and nutrients are
absorbed into the body. These nutrients are used by the cells to create energy
and allow the body to do its
work.
Nov 18­10:13 AM
Villi
(4) Large Intestine
The large intestine is all
about the dirty work! You’ve absorbed all the nutrients, and the undigested waste must go. Undigested waste
﴾mostly fiber﴿ moves through
the large intestine and has
any excess liquid removed, and creates feces ﴾doo doo, poopy,
you know what I mean﴿. Nov 18­10:19 AM
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Digestion1.notebook
END OF THE LINE
November 24, 2014
And They Lived Happily Every After. The End.
The (10)rectum is about eight inches
long and serves, basically, as a warehouse for poop. The rectum has little shelves in it called
transverse folds. The rectum holds
stool in place until you're ready to go to
the bathroom. When you're ready, stool
enters the lower rectum, moves into the
anal canal, and then passes through the
anus on its way out.
Nov 18­10:21 AM
Nov 18­10:23 AM
PERISTALSIS DEMO
Volunteers will: Tuck in all clothing. (no one wants to see your business)
Facing the door, go in to a hand stand (NOT HEADSTAND) so that your face is facing out into the classroom.
Open your mouth and wait
for your Cheetos
Chew, swallow and watch the wonder of PERISTALSIS at
work. Go home and eat
dinner like that and teach your
family all out digestion. Nov 18­12:53 PM
Nov 16­9:17 AM
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