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Heathers digestion

Digestive tract

Where does the digestive tract start? The mouth.
What does the saliva do? moistens and breaks down food.
What do the teeth do? Tear and crush food.
What does the tongue do? Forms the food into a ball.
What does the esophagus do? Transportation tube from the mouth to the stomach.
What does the stomach do? The chemicals break down food and mix it all together.
What does the liver do? Creates food into bile.
What is the gall bladder used for? Storage
How does the pancreas help? it adds extra chemical to the food as it leaves the stomach.
what does the small intestine do? transfers nutrients to the body.
what is the role of the large intestine? Gets rid of stuff the body doesn't need.
How long is the small intestine? 22 feet long
What is the alimenary canal? Muscular tube that is 8 feet long.
Cells that produce saliva are called? amylase
The stomach is what kind of shape? J-shaped
What produces amylase? starch
How long is the stomach? 25-30 centimetres
what is one of the muscular layer on the stomach called? inner circular layer
The other layer of muscle on the stomach? Outer longitudinal layer
What are 3 gastric glands? -Parietal cells -Goblet cells -chief cells
what does the muscular sac do? Churns and mixes food
what are 3 types of lipids? -steroids:Cholesterol -Trygliceroid:energy source -phospholypid:cell membrane
What is chewed food in you mouth called? bolus
What does cholesterol make? estrogen and testosterone
What vitamin is used in energy production? V6
What are two components of digestion? Physical and Chemical
Two types of carbohydrates? Sugars and Starch's
What process moves food? peristalsis
What muscle does the esophagus pass through before reaching the stomach? larynx
Why does the stomach lining produce mucous? to help chemically break down food
How long is the large intestine? 5 feet
Three organs that aid in digestion? -liver -pancreas -gall bladder
Substance that enters the small intestine? chyme
How much water enters the system per day? 2.5 gallons
what role does the appendix play? immune system
what is lactose intolerance? allergic to dairy
What percent of Americans are over weight? 60%
what percent of americans are obese? 25%
What causes people to be over weight? Unhealthy food
How is the colon different from the small intestine? No villi
What is different between the to sphincters? One is voluntary and one inst
What is one amino acid? protein
What are two major types of minor nutrients? Minerals and vitamins.
What is normal flora? Produces natural nutrients
what makes the stomach move? each muscle contraction
What regulates the amount of food leaving the stomach to the small intestine? stomach sphincters
How long does it take for the food to be completely digested? 24 hours
what is the last step to digestion? the anus
what is the technical name for the chewing process? mastication.
Created by: Heathermoor



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