Download Digestion System

By Hannah, Madi, and Faith
 It
breaks down food into smaller substances
 Chemical
digestion
 Mechanical digestion
 Taste buds
 The epiglottis
 Did
you know when you think of your favorite
food it creates saliva?
 Saliva moistens your food in your mouth.
 Saliva contains a chemical called ptyalin.
 Ptyalin breaks down starches in food into
sugar.
 Ptyalin is a enzymes in your body that
controls a variety of chemical reactions.
 This is called chemical digestive system
 When
you bit into food you bit with your
front teeth which is called incisors.
 Your lips pull the food into your mouth.
 Your tongue pushes it to the back of your
mouth.
 Your molars or back teeth chew the food into
smaller pieces.
 Canines or eyeteeth rip the food this is
called the mechanical digestion
 When
you eat food it is up to your tongue
which has taste buds to decide if it is good or
bad tasting.
 The is four different types of taste buds.
 The four taste are salty, bitter, sour, and
sweet.
 The flavor of food does not come from the
taste.
 The flavor is made up of the mixtures of
taste, texture, and order.
 When
your food is chewed up your smooth
muscles in the back of your throat they force
it down your throat.
 Your epiglottis or the small flap of tissue it
closes over your windpipe.
 The windpipe allows to breath because it
stretches to your lungs.
 Your epiglottis helps your food and water go
down the right pipe.
 After you swallow the epiglottis allows air to
move through again.
 Remember
when we said that when you
swallow the smooth muscles it forces it down
that is called the esophagus.
 The stomch is a g shaped organ that is
connected to the esophagus.
 The mucus on your digestive organs help food
travel
 It takes 12 seconds to travel from your
esophagus to your stamach
 Powerful contractions happen as soon as food
comes in the Esophagus to push the food
down.
 When
food is in the stomach it releases a
gastric juice, it contains pepsin.
 Pepsin is a hydrochloric acid that is thick and
slippery mucus.
 Whithout the mucus protecting the stomach
the pepsin would break down the complex
protien into simpler protien.
 The muscle contraction with the gastro
juices push the food to the stomachs exit.
 when
food is put in your mouth it looks a lot
different then when it through your stomach.
 It has been changed into a soft watery
substance.
 After moving through the stomach it goes to
the small intestine.
 Food moves through the small intestine by
perisdalsis.
 To
the right of your stomach is your liver
bodies largest and heaviest organ.
 It help digestion by creating a substance
called bile.
 The gallbladder stores the bile.
 The bile breaks big fat mollucles into smaller
ones.