Phys3

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Author:
westerngal95
ID:
148078
Filename:
Phys3
Updated:
2012-04-17 00:32:54
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phys3
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phys..April 17
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  1. What is the function of the respiratory system?
    allows oxygen from air to enter blood and carbon dioxide from blood to enter air.
  2. 4 ways the respiratory system works with the cardiovascular system.
    • 1)breathing-entrance and exit
    • 2)Exterior respiration-exchange of gasses: blood and air
    • 3)internal respiratation-exchange of gasses: tissue fluid and blood
    • 4) transport of gasses.
  3. 7 parts of the respiratory system
    • 1) nasal cavity-fliter/moisten air(hollow spaces in nose)
    • 2)pharynx-between nasal cavity and larynx(connects)
    • 3)glottis-opening into larynx(air passage)
    • 4)larynx-cartilaginous tube(vocal chords)
    • 5)trachea-flexible tube(connects larynx and bronchi)
    • 6)bronchi-paired tubes(connects bronchi to alveoli
    • 7)lungs-gas exchange
  4. Tital volume
    amount of moving in and out with each breath when relaxed. 500ml
  5. Vital Capacity
    maximum volume of air in and out during a single breath
  6. Inspiratory reserve volume
    forced inspiratation can increase tital volume
  7. expiratory reserve volume
    forced contraction of abdom and intercostal muscles can expel
  8. Inspiration
    diaphram lowers, intercostal muscles contract, rib cage moves upward and outward, lungs expand
  9. Expiration
    diaphram returns to dome shape, intercostal muscles relax, rib cage moves down and in.
  10. how is ventilation regulated?
    controlled by the respiratory center in medulla oblogata. when nerve impulses stop diaphram and muscles relax.
  11. what affects the rate and depth of breathing
    Co2 and pH levels
  12. what monitors the oxygen concentration in blood
    chemorecepetors
  13. Process responsible for carbon dioxide/oxygen exchange?
    diffusion
  14. oxygen transport compound?
    HbO2
  15. carbon dioxide carried to the lungs?
    in blood plasma as a bicarbonate ion
  16. pH levels are regulated?
    Co2 levels- when biocarbonate ions diffuse an H+ ion is given off which lowers pH. when Co2 moves out of blood into lungs pH increases.
  17. otitis media?
    bacterial infection of middle ear.
  18. Pulmonary turbeculosis?
    bacterial infection causes lungs to form turbecles that encapsulates bacteria restricting lungs.
  19. 3 chronic obstructive pulmonary disorders
    • 1) chronic bronchitis- airways inflamed and filled with mucus.
    • 2)emphysema- air traped in lungs-lack of O2 to brain and heart
    • 3)asthma-exposed to irratant smooth muscle tissue of the bronchioles spasm.

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