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Digestive System Test

When food is_______ and broken down into_____ ______ Mashed, Smaller Pieces
When ____ produced by ____ breaks ____ into _______ and ______. Saliva, Glands, Carbohydrates, Simple Sugars, Nutrients
What Kind(s) of digestion were at work when the cracker was in your mouth and you were NOT chewing? Chemical
What Kind(s) of digestion were at work when the cracker was in your mouth and you WERE chewing? Mechanical and Chemical
The fluid in your ____ by _______ Two Main Functions: 1.____________ 2.________ Mouth, Salivary Glands Break down carbohydrates Soften your food
Digestive System A series of tube like organs called the digestive tract.
Digestive Tract Food passes through
Organs Mouth, Pharynx, Esophagus, Stomach, Small Intestine, Large Intestine, Rectum, Anus
Mechanical Digestion the breaking, mashing, and grinding of the food
Chemical Digestion large molecules are broken down into nutrients
Teeth Help the Mechanical digestion breaking down into smaller pieces
Enamel The hardest material in the body
Molars grinding the food
Premolars mashing the food
Incisors, Canines Shredding the food
Saliva Contains the enzymes that start chemical digestion
Esophagus Squeezes the food with rhythmic muscle contractions
Stomach Digestive organ attached to the esophagus
Digestion stomach squeezes food with muscle contractions
Enzymes break down food into nutrients
Chyme Partial Digested food in the stomach
Pancreas makes fluids that protect the small intestine from the stomach acid
Small Intestine Absorbs nutrients into the bloodstream through villi
Liver helps with digestion by: 1. 2. 3. makes bile to break up fat stores nutrients breaks down toxins
gallbladder stores bile made from the liver
large intestine absorbs excess water and turns the rest on chyme into human waste and then it is released out of the body
Where does mechanical digestion take place? Mouth and Stomach
Where does chemical digestion take place? Mouth and Intestines
Peristalsis Rhythmic muscle contractions that forces the food into the stomach
What occurs in the stomach? Mechanical and Chemical digestion; Acid= chemical Muscle contractions= mechanical
Could chemical digestion take place if mechanical digestion did not occur first? No! Chemical digestion relies on the mechanical digestion to break food down into smaller pieces.
After nutrients are broken down, where do they go? villi, finger like projections lets the nutrients pass into the bloodstream.
Created by: 1664967447113497