Transcript The Digestive System Powerpoint

By Michael L and Sally!
• The digestive system
organs in the include
the liver, gallbladder,
stomach, small
intestine and the large
intestine.
• The role of the Digestive System is to break
down the food that we eat into nutrients for
our body and waste.
It squeezes food through 9 metres of twisting
and turning tubes. It starts as soon as you
begin to chew, with muscles squeezing and
powerful chemicals, breaking the food
down into smaller and smaller pieces. The
liver, gallbladder and pancreas make and
release many of the chemicals.
The nutrients are absorbed into the blood
and some is stored for energy. The waste
matter is disposed as faeces and urine.
• The digestive system is a very large
system and it takes up space from the
mouth all the way down to the pelvis.
Different parts of the Digestive system are
located in different parts of our body.
•No a person could not survive
with out the digestive system,
because with out it you would
not be able to get the nutrients
and water that we need!
• By making sure they drink plenty of
water.
Eating healthy foods like Lots of fruit
and vegetables to get the nutrients
that you need!
Intestines: The small intestine is the part of the
gastrointestinal tract (gut) following the stomach and
followed by the large intestine, and is where the
majority of digestion and absorption of food takes place.
Liver: The liver is a vital organ. It’s functions include: A
filter for toxins, creates protein for the body and creates
other chemicals to help digest the food. The liver is
necessary for survival; there is currently no way to
replace it. Stomach: The stomach is involved in the
second phase of digestion, following chewing. It
produces enzymes and strong acids to aid in food
digestion, and also churns food (makes it a smooth
paste) before sending food to the small intestines.
Gallbladder: The gallbladder is a small non-vital organ
that aids in the digestive process and stores bile
produced in the liver.
• The main function for the Digestive
System is to break down the food
into smaller parts so the body can
use them to provide energy!
•The Digestive System is very
important to the human
body because it helps us to
digest our food.
• There a few things that can go wrong
with the Digestive System:
• 1. Appendicitis:
• Is when your appendix are inflamed,
that is because all the bacteria has
gone to your appendix.
• 2.Galstones:
• Gallstones are little stones that form in
your gallbladder. This is a little pouch
that sits right under your liver.
• The food stays in the small intestine from 1-4
hours.
• The food stays in the mouth for about 1
minute. In the stomach the food stays there
for 2-4 hours
Adults can hold 1.5 litres of food in their
stomach.
• Fibre keeps our digestive system healthy.
• We eat around 500KG of food each
year!
• In the human mouth our food is either
cooled or warmed to a more
reasonable temperature!
• The esophagus is approximately 25cm