 The esophagus is a
muscular tube that
connects the mouth to
the stomach.
 It moves food from the
mouth to the stomach through a series of
muscular contractions called peristalsis.
 Store and digest the food .
 Produces hydrochloric acid and enzymes to
help digest food.
 Acidic environment kills
bacteria.
 The digested food is called chyme.
 Release pancreatic juice
 Digest fats, carbohydrates and proteins
 Regulates blood sugar by producing insulin.
TINY FINGER
LIKE
Increase
The
surface
area
INCREASE
THE
ABSORPTION
INNER
LINING OF
SMALL
INTESTINE
 No digestion
 Absorb water and vitamins.
 Leftover waste is stored at the
end called the RECTUM.
 Students need to choose any food you wish.
 Imagine that the food has feelings.
 Explain all that in your comic strip.

class 7 digestive system ppt.pptx digestion