Digestive System Notes

Question Answer
What happens in the Mouth? This is where saliva begins, when food is chewed, mashed, grinded, whatever. Saliva contains an enzyme that remains in the mouth for about 2 minutes
What happens in the Esophagus? In the esophagus, food is no longer in the mouth. It is pushed down your throat by muscles. It stays in the esophagus for about 4-8 minutes. Peristalsis is responsible for rumbling sounds in your body.
What happens in the Stomach? Food is broken down by hydrochloric acid and enzymes during the chemical breakdown. It remains in the stomach for 4 hours, and forms a thick liquid.
What happens in the Small Intestine? That thick liquid is mixed with another liquid called bile, and passes through the remaining 20 ft. of the small intestine. It will take about 2 hours.
What happens in the Large Intestine? In the large intestine, any liquid that hasn't been digested goes into the small intestine. And the remaining wastes are considered urine or feces.
What are villi? Finger-shaped bumps in the small intestine that soak up nutrients and created a larger surface area
What is the pancreas? A digestive organ that makes chemicals to break proteins, fats, and carbohydrates down, and helps control how much sugar is in the blood.
What is the liver? Makes bile break down fats. It also stores sugar when body needs it, and gets rid of harmful substances such as alcohol.
What is saliva? Saliva is the beginning of digestion, that contains a digestive juice called enzymes that change starch into sugar.
What is the gallbladder? An organ that stores bile, that digest fats, and sends bile to the small intestine when needed.

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