1. List, in order, the seven major organs that move food through your body.

Transcription

1 THE DIGESTIVE SYSTEM Directions: Review the digestive system lesson. Then, answer the questions. 1. List, in order, the seven major organs that move food through your body. 2. What is the job of the epiglottis? 3. What carries nutrients from the small intestine to the other parts of your body? 4. The gallbladder stores until the body needs it. 5. The pushes food around the mouth so it has a chance to be chewed. 6. Undigested food becomes 7. What is the liquid in your mouth called? 8. Explain why the small intestine is called "small," and the large intestine is called "large." 9. Where does the real job of digestion take place? 10. Why is peristalsis important to your digestive system? 11. You can donate part of your liver to someone else without harming it. Why is this possible? 12. Pancreatic juices help you digest and

2 VOCABULARY The following vocabulary words are from The Human Digestive System. Fill in the number of each word next to its closest definition. 1. amino acids 7. lipids 2. bile 8. liver 3. carbohydrates 9. pancreas 4. duodenum 10. proteins 5. gallbladder 11. starches 6. hydrochloric acid 12. villi organic compounds such as fat and cholesterol gland which secretes enzymes for all types of digestion foods that include bread, pasta and potatoes organ that stores bile largest gland in the body and producer of bile group of compounds that includes starches and sugars aids protein digestion in the stomach building blocks of protein fluid which breaks down fats in the small intestine main building material of all cells fingerlike projections that increase surface area of the small intestine first portion of the small intestine 18

3 THE DIGESTIVE SYSTEM Label the diagram above using the following terms: liver, rectum, pancreas, stomach gallbladder, esophagus, duodenum, small intestine. Where does bile go after it leaves the gallbladder? 3. Which organ is primarily responsible for protein digestion? Where does fat digestion begin? 5. Where does starch digestion begin? 19

4 TAKE A DEEP BREATH Directions: Write the answer that fits each description in the blanks. Then, use the numbers under the answers to solve the word puzzle on the next page. 1. gas needed by every cell in your body gas produced as a waste product the other waste released by the lungs , the throat voice box windpipe

5 TAKE A DEEP BREATH page 2 7, two large organs in the chest lead from trachea into lungs tiny air sacs large muscle on floor of chest cavity that helps you breathe Word Puzzle The purpose of the respiratory system is to:

6 NAME THAT PART Directions: Use words from the word bank to label the major parts of the respiratory system on the diagram. Write your answers in the blanks. Word Bank

7 The walls of the alveoli and capillaries are thin enough to allow the exchange of gases. In your lungs, blood exchanges carbon dioxide for oxygen. Oxygen passes into the bloodstream through the walls of the alveoli. Waste products (carbon dioxide and water) pass out of the bloodstream into the air as they move through the alveoli. Breathing In and Breathing Out Breathing involves two main activities: inhaling and exhaling. Inhaling pulls air (and oxygen) into the lungs. Exhaling pushes air out of the lungs, taking water and carbon dioxide with it. The lungs do not inhale and exhale on their own because they are not made of muscles. The movement of air in and out of the lungs happens because of the diaphragm. This is the large muscle on the floor of the chest cavity that causes breathing. When you inhale, the diaphragm pulls air into your lungs. As the diaphragm contracts, the chest expands and air rushes into the lungs. As the diaphragm relaxes, the chest shrinks and causes air to leave the lungs. if the diaphragm contracts more quickly than usual, your breaths come in gasps and make a "hic" sound. You have the hiccups. Inhalation Exhalation chest expands air goes Into the lungs air leaves the chest contracts diaphragm contracts relaxes

8 . Directions: Use words from the word bank to complete the sentences. Some words are used more than once. Word Bank There are five major organs in the (1) They are the (2) the (4), (5) the (6)., the (3) system., and the (7) is produced in the kidneys. As the urine leaves the kidneys, it travels through the (8) and into the (9), where it is stored until a person uses the bathroom. The urine leaves the bladder and flows through the (10) to the outside of the body. Other parts of the excretory system, the (11), are also part of the respiratory system. When the body uses food for energy, (12) and water are produced as waste products. The water is given off through the largest organ of the body, the (13). (14) helps control the body s temperature and removes extra (15) from the cells. The (16) systems. (17) the (18) is part of the digestive and excretory leave the large intestine through

9 3 THE EXCRETORY SYSTEM The Kidneys Name Directions: Place the words from the box at the bottom of the page next to the appropriate lines on the diagram. Kidney Ureter Bladder Urethra Adrenal Glands THE EXCRETORY SYSTEM from the Human Body Systems Series 1998 AGC/United Learning 1560 Sherman Av., Suite 100 Evanston, IL Fax