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Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction? Copyright © Houghton Mifflin Harcourt Publishing Company.

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Presentation on theme: "Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction? Copyright © Houghton Mifflin Harcourt Publishing Company."— Presentation transcript:

1 Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction? Copyright © Houghton Mifflin Harcourt Publishing Company

2 Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction? Florida Benchmarks Copyright © Houghton Mifflin Harcourt Publishing Company SC.5.L.14.1 Identify the organs in the human body and describe their functions, including the skin, brain, heart, lungs, stomach, liver, intestines, pancreas, muscles and skeleton, reproductive organs, kidneys, bladder, and sensory organs. SC.5.L.14.2 Compare and contrast the function of organs and other physical structures of plants and animals, including humans, for example: some animals have skeletons for support—some with internal skeletons, others with exoskeletons— while some plants have stems for support.

3 Down the Hatch Copyright © Houghton Mifflin Harcourt Publishing Company Food travels through your body until all the useful parts are absorbed. Food travels down a tube called the esophagus. The muscular bag that mashes food into a liquid and mixes the food with digestive juices is the stomach. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

4 Down the Hatch Copyright © Houghton Mifflin Harcourt Publishing Company After it passes through the stomach, the liquid passes to the small intestine. The small intestine is a coiled tube that digests food and absorbs nutrients. In the large intestine, water and minerals are soaked up, leaving only waste. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

5 Down the Hatch Copyright © Houghton Mifflin Harcourt Publishing Company Identify the esophagus, stomach, small intestine, and large intestine in the image below. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

6 Down the Hatch Copyright © Houghton Mifflin Harcourt Publishing Company The liver makes bile that helps break large blobs of fat into smaller droplets. The pancreas makes juices that are released into the small intestine for breaking down fats and proteins. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

7 Down the Hatch Copyright © Houghton Mifflin Harcourt Publishing Company The gallbladder stores bile from the liver and sends it to the small intestine when food passes through. All of the parts of the digestive system help the body to absorb important materials from food. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

8 Food for Thought Copyright © Houghton Mifflin Harcourt Publishing Company Nutrition information on a package label can help you make healthy food choices. The number of servings, Calories, proteins, carbohydrates, fats, and nutrients are listed. Calories are a measure of how much energy your body will get from food. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

9 Waste Removal Copyright © Houghton Mifflin Harcourt Publishing Company The excretory system rids the body of waste and keeps water and salt levels in balance. When nutrients are broken down, waste products are made. The liver converts ammonia to urea. Your body releases this as urine. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

10 Waste Removal Copyright © Houghton Mifflin Harcourt Publishing Company The lungs are also part of the excretory system. Your body produces carbon dioxide as a waste. You get rid of carbon dioxide when you breathe out. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

11 Waste Removal Copyright © Houghton Mifflin Harcourt Publishing Company The urinary system filters the blood and rids the body of wastes as urine. The kidneys are organs that remove waste from the blood. Kidneys also help to conserve water and keep the amount of salt in the body balanced. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

12 Waste Removal Copyright © Houghton Mifflin Harcourt Publishing Company Urine collects in tubes called ureters that move the urine to the bladder. The bladder stores urine until is released. The urethra is a small tube that moves urine to the outside of the body. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

13 Waste Removal Copyright © Houghton Mifflin Harcourt Publishing Company Describe the movement of waste in the urinary system. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

14 Eating and Excreting Copyright © Houghton Mifflin Harcourt Publishing Company Living things have different ways of breaking down nutrients and getting rid of waste. How does a cow’s stomach break down grass? Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

15 Cycles of Life Copyright © Houghton Mifflin Harcourt Publishing Company Animals and plants all have reproductive systems that make new organisms. In humans, male reproductive cells are made in the testes. In humans, female reproductive cells are made in the ovaries. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?

16 Cycles of Life Copyright © Houghton Mifflin Harcourt Publishing Company Reproductive cells can join to produce an embryo. The embryo grows into a baby. Some animals lay eggs that hatch. Plants often make seeds for reproduction. Unit 8 Lesson 4 What Body Parts Enable Digestion, Excretion, and Reproduction?


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