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Respiratory System

Parts & Function. Respiratory System. Nasal Cavity / Nose. Organ where air enters the respiratory system Nasal Nares entrance to nasal cavities Mucous lined Cavities Moisten/Warm Air Smell. Pharynx. Tube that leads air from nose/mouth. 3 sections Nasopharynx

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Respiratory System

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  1. Parts & Function Respiratory System

  2. Nasal Cavity / Nose • Organ where air enters the respiratory system • Nasal Nares • entrance to nasal cavities • Mucous lined Cavities • Moisten/Warm Air • Smell

  3. Pharynx • Tube that leads air from nose/mouth. • 3 sections • Nasopharynx • behind nasal cavities • oropharynx • back of mouth • laryngopharynx • bottom of throat. • Air/Food share

  4. Larynx • Voice Box • Below the Pharynx. • Made of cartilage rings. • Vibrate with air to create sounds • Adam's apple

  5. Epiglottis • Cartilage flap that covers the larynx opening when swallowing food or water. • Directs food to esophagus • Prevents them from entering lungs.

  6. Windpipe Extends from larynx to bronchi. Made of sturdy cartilage Trachea

  7. Bronchi / Bronchial Tree • Branches off the Trachea. • Direct air into lungs. • Primary first branch that leads into the lung • Secondary are those that branch off primary, smaller. • There are 10 Tertiary Bonchi

  8. Lungs • Large organs where gas exchange is facilitated. • Divided up into 10 sub-compartments called Lobes, • Right is smaller due to heart

  9. Parietal Pleura • The Pleural lining that covers the inside of the chest wall/ribs

  10. Pleural Space • The space between the Parietal and Visceral Pleura • Filled with a small amount of fluid • Reduce Friction

  11. Visceral Pleura • The Pleural Lining that covers the lungs

  12. Diaphragm • Smooth Muscle • "engine" for the respiratory System. • Causes Inspiration • Dome Shaped. • Separates Thorasic/Abdominal Cavity. • Flattens w/ Inspiration

  13. Primary Bronchi • Right and Left Branches off the Trachea • Direct Air into the Right and Left Lungs

  14. Bronchioles • Another Name for Tertiary Bronchi • They Branch off into the different lobes of the lungs

  15. Terminal Bronchiole Directs Air into the Alveolar Ducts/Sacs Respiratory Bronchiole

  16. Alveolar Ducts • Smaller tubes that branch off the bronchioles in the lungs. • Direct gasses into/out of the alveolar sac

  17. Alveoli / Alveolar Sac • Alveolar Sac • A collection of smaller sacs • Bunch of Grapes • Alveoli • Small Sac within the “bunch” • Lined with Capillaries • Gas Exchange

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