Digestive System How our body gets energy and gets rid of waste

Digestive System Function – To get energy out of the food and liquids we eat by breaking it down Doctor: Gastroenterologist

Digestive System Types of Digestion – Mechanical – physical movement of the food to break it down. Happens in the mouth, stomach. – Chemical – when chemicals are added to the food to break it down. Happens in the mouth, stomach, and small intestine – Nutrient Absorption – taking the good stuff the body needs out of the food. Happens in the small intestine. – Water Absorption -- taking the water out of the food and liquids you eat. Happens in the large intestine or colon.

Digestive System – Structure Structure is the look and size of a part.

Parts of the Digestive System Mouth – Mechanical digestion using the teeth and chemical digestion from the chemicals released from the salivary glands. Esophagus – Mechanical Digestion by pushing the food from the mouth to the stomach Stomach – Mechanical digestion through churning the food and Chemical Digestion with the chemicals given from the liver, gallbladder, and pancreas. Liver/Gallbladder/Pancreas – gives chemicals to the stomach to help breakdown. Bile and insulin are chemical names.

Small Intestine –finishes digestion through chemical digestion and absorbs nutrients. Examples are minerals, vitamins, proteins, carbohydrates, and fats. Large Intestine/Colon – absorbs water and makes solid waste Rectum/Anus – gets rid of solid waste

Mouth Esophagus Liver Stomach Gallbladder Pancreas Colon/Large Intestine Small Intestine AppendixRectum Anus

Homeostasis All parts of your body working together to be healthy and balanced. How does your digestive system help keep your body in homeostasis? – Gets energy – Removes solid waste