Fun Facts on Digestion. Stomach growling??? – Intestines contracting. Burping or a “little flatulence”??? – trapped gas and air from bacteria. Every person eats @3lbs of food / day – 1095 lbs of food / year!!!!! Entire digestive system is 30 ft long!!! You produce 1 qt of saliva / day!!!. - PowerPoint PPT Presentation
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Fun Facts on DigestionStomach growling??? Intestines
contracting.Burping or a little flatulence??? trapped gas and air
from bacteria.Every person eats @3lbs of food / day 1095 lbs of
food / year!!!!!Entire digestive system is 30 ft long!!!You produce
1 qt of saliva / day!!!
Chewing your cud How many stomachs does a cow have????4 !!!!
What organ is attached to your large intestines and has no known
purpose???
Your appendix
Digestive SystemDigestion the chemical and mechanical breaking
down of food into something the cells can use.Kidshealth
Major Organs & FunctionsMouthEsophagusStomachSmall
IntestinesLarge Intestines / colonRectum & Anus
LiverGall BladderPancreas
Mouth Beginning of digestion.Mechanical Digestion begins with
tongue and teeth. MOST mechanical digestion takes place
here.Chemical Digestion begins with saliva breaking down starch to
sugar.Saltine Crackers
Epiglottis flap of cartilagecloses trachea (windpipe) when
swallowingfood travels down esophagusPeristalsis involuntary muscle
contractions to move food along
Esophagus - carries chewed food to the stomach. *Peristalsis
muscle contractions that push the food down the tube. stomach -
secrete HCl (hydrochloric acid) & pepsin to help with chemical
digestion.
Mechanical digestion also takes place here with the
churning.
Liver - have over 500 functions!!! - produces bile to help
digestion fat.gall bladder - storage tank for the bile.Pancreas -
secretes enzymes to help break down food in the sm. intestines
small intestine-
Food enters here AFTER the stomach.
MOST of the chemical digestion takes place / the pancreas and
gall bladder secrete chemicals
Nutrients are absorbed here into your blood.
Villi Found in small intestines to absorb nutrients and
water.
large intestines / colon. Water is absorbed here & enters
the bloodstream. The remaining is prepared to leave the body as
waste.rectum and anus a short tube and opening where solid waste is
stored and eliminated from the body.
Interactive
Which type of digestion is the following? Chewing a saltine?
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2. Saliva breaking the saltine down into molecules of glucose?
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3. Your tongue breaking pieces of a hamburger apart?
4. Pepsin (an enzyme) & HCl in your stomach breaking the
hamburger into amino acids?
