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Transcript 
Digestive System and its organs
Organs
and their
functions.
Mechanical Digestion
• Chewing,
wetting,
churning of
food (any
physical
change) takes
place in mouth
and stomach
Chemical Digestion
• Chemical
breakdown of
food into
different parts,
takes place in all
organs except
large intestine
Epiglottis
• Closes off
when you
swallow
Peristalsis
• Peristalsis—
muscle
contractions
that moves
food through
your digestive
system
Bolus
• Food is
swallowed in
your mouth and
travels
through the
esophagus into
your stomach
Chyme
• Food leaves
your stomach
and enters the
small intestine
Feces
• Feces—waste
leaves your
small intestine,
large intestine
(colon) and
body
Green-major digestive organs
MOUTH
STOMACH
LARGE
INTESTINE
(COLON)
SMALL
INTESTINE
SALIVARY
GLANDS
Accessory organs
(give dig. Sys.
Important
chemicals)
LIVER
GALLBLADDER
PYLORIC
SPHINCTER
PANCREAS
Other structures
EPIGLOTTIS
TRACHEA
ESOPHAGUS
APPENDIX
ANUS
RECTUM
Green-major
digestive organs
Blue—names for
food as it leaves the
organ
MOUTH
“bolus”
STOMACH
“chyme”
LARGE
INTESTINE
(COLON)
“feces”
SMALL INTESTINE
“feces”
The End
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