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Chapter 14: Respiratory System

Chapter 14: Respiratory System. Professor Tracy Abram, MAIS, BS. Objectives. Discuss functions of the respiratory system List major organs of the respiratory system Investigate and analyze internal and external respiration Mechanisms that regulate respiration. Inquiring Minds want to know….

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Chapter 14: Respiratory System

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  1. Chapter 14:Respiratory System Professor Tracy Abram, MAIS, BS

  2. Objectives Discuss functions of the respiratory system List major organs of the respiratory system Investigate and analyze internal and external respiration Mechanisms that regulate respiration

  3. Inquiring Minds want to know… • What is the function of the respiratory system?

  4. Respiratory System Functions: • Distributes air • Exchanges gasses • Effective Filterer • Dynamic Warmer • Super Humidifier

  5. Structural Plan Figure 14-1 p. 363 • Respiratory Organs: • Nose-olfactory cells for sense of smell • Larynx- voice box • Pharynx- throat • Trachea-windpipe • Bronchi • Lungs • ***Tube with many branches of alveoli****

  6. Alveoli Circulation capillaries Alveolar sac

  7. Passive Transport • Diffusion: responsible for the gas exchange in the respiratory system.

  8. Respiratory Tracts Upper Respiratory Tract Lower Respiratory Tract • Nose • Pharynx • Larynx • Trachea • Bronchi • Lungs

  9. Nose

  10. Pharnyx: Throat

  11. Larynx: Voicebox

  12. Trachea: Windpipe

  13. Bronchi, Bronchioles, & Alveoli • Figure 14-7, page 370

  14. Cellular Respiration • When humans breathe, laugh or talk, we release carbon dioxide. This process is called cellular respiration. In cellular respiration, humans take in food and oxygen and release carbon dioxide and water to produce energy.     • Respiration= • C6H12O6 (glucose) + 6O2 (oxygen)-----------> 6CO2 +6H2O + energy

  15. Breathing mechanics Inspiration Expiration • Inhalation- moves air into the lungs • Diaphragm: muscles separating the abdomen from thoracic cavity • Exhalation- moves air out of the lungs • Figure 14-11 page 376

  16. Respiratory Quiz for you!

  17. Answers to Quiz • 1. Alveoli • 2. Nose • 3. Larynx • 4. Bronchi • 5. Trachea • 6. Lung

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