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Digestive System

TermDefinition
What is the function of the digestive system? It breaks down food into small molecules that can be absorbed into the bloodstream.
What do your cells need to function? Nutrients
What do nutrients give your body? Energy (ATP
Why does our body need energy (ATP)? To carry out life's functions and maintain homeostasis
What are the two types of digestion? Mechanical and Chemical Engineering
What is mechanical digestion? The physical breakdown of food
What is chemical digestion? The break down of food using chemicals
First Stop: Mouth. What happens in the mouth? Changes food into a soft mass (tongue, teeth, and saliva)
Second stop: Esophagus: What happens in the esophagus? Moves food to the stomach by peristalsis (muscle contractions)
Third Stop: Stomach. What happens in the stomach? Muscular sac that turns food into chyme. Uses chemical (digestive juices), and mechanical (peristalsis) digestion
Fourth Stop: Small Intestines. What happens in the small intenstines? It's long, skinny tube that is the main same site of nutrient absorption. Has many blood vessels.
Fifth stop: Large Intestines. What happens in the large intestines? Absorbs water from undigested chyme
Sixth stop: Rectum and anus. What happens in the rectum and anus? Controls the release of solid waste (feces) from body
Liver. What does the liver do? Makes bile (helps digest fats.)
Gall bladder. What does the gall bladder do? Stores bile to be released in the small intestine. Helps break down fat.
Pancreas. What does the pancreas do? Makes digestive enzymes and insulin to regulate blood sugar.
Created by: user-1969827
 

 



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