Chapter 7 anatomy respiratory system

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Chapter 7 anatomy respiratory system
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2013-08-22 12:45:41
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  1. What are the organs responsibility in the Respiratory system?
    Bringing fresh air in lungs exchange oxygen with carbon dioxide between air sacs of lungs and blood stream exhaling stale air
  2. What are the organs of the respiratory system ?
    Nasal cavity, pharynx , larynx, trachea, bronchial , tubes and lungs 

    • function together to aid respiration 
    • removal of carbon dioxide needed 
    • respiratory system works with the cardiovascular system to deliver oxygen
  3. What are the three parts of the respiration system?
    Ventilation- flow of air between lungs and environment 

    External respiration- exchange of oxygen and carbon dioxide 

    Internal respiration- oxygen and carbon exchange on a cellular level
  4. What are the two oxygen flows?
    Inhalation- flow of air in the lungs 

    • Exhalation- flow of air outside of lungs 
    • removes carbon dioxide
  5. Nasal Cavity
    Ventilations begins with the Nasal cavity

    Air enters through two external openings in the nose called the Nares

    Nasal cavity is divided down the middle by Nasal Septum 

    Palate 
    roof of the mouth separates nasal cavity above from mouth below 

    Walls of the nasal cavity and septum are covered with Mucous Membrane 
  6. What does mucus do?
    Cleans the air by trapping dust and bacteria
  7. What does Cilia which are small hairs that line the nose do?
    Filter out dirt particles before it can enter lungs
  8. Air filled cavities
    Paranasal sinuses 

    located within facial bones
  9. Sinuse
    Echo chamber gives voice resonance
  10. Pharynx
    Used by respiratory and digestive system 

    End pharynx enters trachea food and liquids are pushed to the esophagus
  11. 3 parts of the Pharynx
    Upper - nasopharynx

    Middle- oropharynx 

    Lower- laryngopharynx
  12. What are the three pairs of tonsils?
    Adenoids aka Pharyngeal tonsils

    Palastine tonsils aka lingual tonsils

    lingual tonsils
  13. What are the actions of the tubes?
    Opens equalize air pressure between the middle and the outside atmosphere
  14. Larynx
    Located between the pharynx and trachea 

    Contains the vocal cord 

    produce sound as vibration air that passes through the glottis which is the opening between the two vocal cords
  15. Larynx aka voice box
    • Flap of cartilaginous tissue 
    •  
    • Epiglottis sits above the glottis and provides protection against food and liquids being inhaled  into lungs
  16. Epiglottis
    Covers larynx and trachea during swallowing and shuts food and liquid from the pharynx into esophagus
  17. Thyroid Cartilage
    Known as Adams Apple 

    Bigger in man to produce a deeper voice
  18. Trachea aka windpipe
    Passage way for air 

    extends from pharynx and larynx down to main brochi 

    Smooth muscle and cartilage rings mucous membrane and cilia assists in cleansing, warming and moisturizing air as it travels to the lungs
  19. Bronchial Tubes
    Trachea divides to form left and right main bronchi 

    Bronchus enters lung to form secondary and tertiary bronchi

    The narrowest branch - Bronchioles
  20. Alveoli
    Are air sacs 

    Walls of the alveoli are elastic giving them the ability to expand to hold air
  21. Pulmonary Capillaries
    Encases each alveolus 

    Alveoli and capillaries single unit as the respiratory membrane

    Exchange of Oxygen and carbon dioxide takes place across the respiratory membrane
  22. Lungs
    • Bronchi
    • Bronchioles
    • Alveoli      

    Spongy to the touch because they contain air.
  23. Lungs 2
    Lungs are protected by the pleura ( membrane) pleura's outer membrane is the parietal pleura.

    Inner membrane - visceral pleura surface of lungs.
  24. What is the name of the sac that is around the lungs?
    Pleural cavity
  25. Where is serous fluid found?
    Between the two layers of the pleura 

    helps reduce friction when the two layers rub together as the lungs contract and expand
  26. Lobes in the lungs
    Three lobes in the larger right lung ( right upper, right middle and right lower lobes)

    two in the left lung ( left upper and left lower lobes)
  27. Portions
    Superior portion -Apex

    Broader lower portion - base
  28. Helium
    • Is the entry into the structure of bronchi, blood vessels and nerves into each lung occurs.
    • entry and exit point
  29. Mediastinum
    Area between the right and left lung contains the heart , aorta , esophagus , thymus gland and trachea
  30. Lung volumes and capacities
    Respiratory therapist - measures lung capacities and functioning levels of respiratory system
  31. Pulmonary Function test
    Measurement
  32. Respiratory Muscles
    Air moves in and out lungs by difference in atmospheric pressure 

    Pressure in chest cavity
  33. Diaphragm
    Muscle that separates the abdomen from the thoracic cavity 

    Produces difference in pressure 

    Diaphragm contracts and then moves downward s
  34. Intercostal muscles
    Located between the ribs - assist in inhalation by rising the rib cage to enlarge the thoracic cavity 

    when the intercostal muscles relax the thoracic cavity become smaller
  35. Respiratory Rate
    Our vital signs along with heart rate temperature and blood pressure
  36. Respiratory rate
    Respiratory rate is regulated by CO square in the blood CO2 is high we breath more rapidly expel the excess when co2 levels drop our respiratory levels drop our respiratory rate will drop

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