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Digestive System

Digestive System for Science 7

Where do the nutrients from the body go after being broken down? To the bloodstream
What is an ulcer? When mucus doesn't protect the stomach, and the stomach begins to digest itself
What is the path of food? Mouth-Esophagus-Stomach-Small Intestine-Large Intestine-Rectum-Anus
What is the function of the epiglottis? It is the flap of tissue that prevents food from going down the trachea when swallowing
What is the function of the esophagus? Connects mouth to stomach
Why are bacteria helpful? They help digest food to produce needed vitamins
What is gastric juice? Contains several enzymes helpful to the body
How does the pancreas help in digestion? Produces pancreatic juices that digest proteins, fats, and carbohydrates. It also helps neutralize stomach acids
What does hydrochloric acid do to the stomach? Helps enzymes in gastric juice work better and destroys harmful bacteria
What is the duodenum? First part of small intestine where most digestion occurs
Nutrient Substance in food that produces energy and materials for life's activities
Protein Nutrient made up of amino acids, used throughout the body for growth and to replace/repair cells
Amino Acid The building blocks of protein
Carbohydrate Nutrient that provides most of the body's energy
Fat Nutrient that also provides energy, cushions organs and helps the body absorb vitamins
Vitamin Organic nutrient that promote growth, regulate body functions, and help the body use other nutrients
Mineral Inorganic nutrient that regulate many chemical reactions in the body such as building cells and sending nerve impulses
Mechanical Digestion Physical breakdown of food into smaller particles by chewing and churning
Chemical Digestion Chemical breakdown of food by fluids in the mouth, stomach, and small intestine
Enzyme Protein that speeds up chemical reactions in cells without being changed itself
Peristalsis Muscular contractions that move food throughout the digestive system
Chyme Thin, watery liquid in the digestive tract-partially digested food
Villi Tiny, fingerlike projections on the inner surface of the small intestine
Created by: sophialee