Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? Copyright © Houghton Mifflin Harcourt Publishing Company 1.

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Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? Copyright © Houghton Mifflin Harcourt Publishing Company 1

Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? Copyright © Houghton Mifflin Harcourt Publishing Company 2

Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? What Goes In... Food travels through your body until all the useful parts are absorbed. Food travels down the esophagus, a long tube that begins in the throat. Copyright © Houghton Mifflin Harcourt Publishing Company 5

Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? What Goes In... The stomach is a muscular bag that mashes food into a liquid and mixes it with digestive juices. The food then passes to the small intestine. Copyright © Houghton Mifflin Harcourt Publishing Company 6

What Goes In... Small Intestine Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? What Goes In... The small intestine is a long coiled tube that digests food and absorbs nutrients. Small Intestine Copyright © Houghton Mifflin Harcourt Publishing Company 7

What Goes In... Large Intestine Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? What Goes In... In the large intestine, water and minerals are soaked up, leaving only waste. Solid waste passes out of your body. Large Intestine Copyright © Houghton Mifflin Harcourt Publishing Company 8

Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? What Goes In... The liver makes bile that helps break large blobs of fat into tiny droplets so the fats can be broken down more easily. The gallbladder stores bile from the liver and sends it to the small intestine only when food passes through. Copyright © Houghton Mifflin Harcourt Publishing Company 9

Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? What Goes In... The pancreas makes juices that are released into the small intestine to break down fats and proteins to be absorbed by the body. Pancreas Copyright © Houghton Mifflin Harcourt Publishing Company 10

Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? What Goes In... Identify the esophagus, stomach, small intestine, and large intestine in the image below. Copyright © Houghton Mifflin Harcourt Publishing Company 11

Unit 3 Lesson 5 How Do Our Bodies Digest Food, Remove Wastes, and Send Messages? Food for Thought Nutrition information on a package label can help you make healthy food choices. The number of servings, calories, proteins, carbohydrates, fats, and nutrients and their daily recommended amounts are listed on the label. Calories are a way to measure how much energy your body will get from food. Copyright © Houghton Mifflin Harcourt Publishing Company 12

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