Digestive System - The organs that break down food so that it can be used by the body., Digestion - The process of breaking down food into a form that can pass from the digestive tract into the bloodstream., Mechanical Digestion: - The breaking, crushing, and mashing of food., Chemical Digestion: - The breaking down of large molecules into nutrients., Nutrients: - Substances in food that the body needs for growth, maintenance, and repair., Enzymes: - Substances that break some nutrients into smaller particles the body can use., Mouth: - The first part of the digestive system where food is chewed and mixed with saliva., Saliva - A liquid in the mouth that contains an enzyme to start chemical digestion., Esophagus: - A long tube that squeezes food from the throat to the stomach., Peristalsis - Rhythmic muscle contractions that squeeze food through the esophagus and intestines., Stomach - A muscular sac that squeezes food and uses enzymes and acid to break it down., Chyme - The soupy mixture of food and fluids in the stomach., Small Intestine - A long, coiled tube where most chemical digestion and nutrient absorption occur., Villi - Finger-like projections in the small intestine that absorb nutrients., Liver: - A large organ that makes bile, stores nutrients, and breaks down toxins., Gallbladder - A sac-like organ that stores bile., Pancreas - An organ that makes fluids containing enzymes to digest chyme and neutralize acid., Large Intestine - A wider tube that absorbs water from undigested material and forms feces., Rectum - The last part of the large intestine that stores feces., Anus - The opening where feces are expelled from the body.,

Digestive system flash cards

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