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The Respiratory and Digestive Systems Key

The Respiratory and Digestive Systems Key. I. The Respiratory System. Define respiratory system. The system that functions to get oxygen from the environment and remove carbon dioxide and other waste products. I. The Respiratory System.

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The Respiratory and Digestive Systems Key

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  1. The Respiratory and Digestive Systems Key

  2. I. The Respiratory System • Define respiratory system. The system that functions to get oxygen from the environment and remove carbon dioxide and other waste products.

  3. I. The Respiratory System 3. List the 2 main functions of the respiratory system. A. Get oxygen from the environment B. Remove carbon dioxide and other waste products

  4. I. The Respiratory System • What are 3 components (gases) in air? • oxygen • carbon dioxide • nitrogen • What happens when levels of oxygen or carbon dioxide change? The brain or blood vessels signal the body to breathe faster or slower.

  5. I. The Respiratory System 6. Define cellular respiration. process in cells by which oxygen is chemically combined with food molecules and energy is released. 7. What 3 body systems are involved in cellular respiration? A. respiratory system B. digestive system C. circulatory system

  6. I. The Respiratory System • What must be removed from the cells? carbon dioxide

  7. I. The Respiratory System 9. Which structures does oxygen use to move into the lungs? Bronchial tubes/bronchi 10. Copy and label the diagram.

  8. I. The Respiratory System 11. What are 5 activities the respiratory system is involved in? Speech, clear particles out of nose and throat, express emotion, cough, sneeze, sigh, yawn, laugh, cry

  9. I. The Respiratory System 12. List the name and the function of the following: • Cilia e. Bronchial tubes/bronchi • Mucus f. Alveoli • Trachea g. Ribs • Lungs h. Diaphragm

  10. I. The Respiratory System

  11. I. The Digestive System 1. Why does your body need nutrients? To enable the body to move, grow, and maintain homeostasis. 2. What makes up more than half of your body? water 3. Define digestion. Process of breaking down food into substances the body can use, and absorbs these substances

  12. I. The Digestive System 4. Define digestive system. Performs the complex jobs of moving and breaking down food. 5. Define peristalsis. Wavelike muscular contractions of smooth muscles.

  13. I. The Digestive System 6. Define mechanical digestion. Food is broken down into smaller pieces. 7. Define chemical digestion. special proteins called enzymes break up large food molecules into smaller molecules that can be taken in by cells.

  14. 8. Copy and label the diagram.

  15. I. The Digestive System 9.

  16. I. The Digestive System 10. Where in your digestive system does mechanical digestion occur? mouth and stomach

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