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10 Cards in this Set

  • Front
  • Back
Major function of the respiratory system is..
to fulfill these needs, that is, to supply the body with oxygen and dispose of carbon dioxide.
composed of four distinct events... Pulmonary ventilation, external respiration, respiratory gas transport and internal respiration.
pulmonary ventilation..?
Air must be moved into and out of the lungs so that the gas in the air sacs (alveoli) of the lungs is continuously changed and refreshed. This is commonly called ventilation, or breathing.
external respiration..?
gas exchange (oxygen loading and carbon dioxide unloading) between the blood and alveoli must occur.
respiratory gas transport..?
oxygen and carbon dioxide must be transported to and from the lungs and tissue cells of the body. This is accomplished by the cardiovascular system, which uses blood as the transporting fluid.
internal respiration..?
gas exchanges must be made between the blood and tissue cells.
the organs of the respiratory system include.. ?
nasal cavities, the pharynx, the larynx, the trachea, the bronchi and their smaller branches, and the lungs, which contain the terminal air sacs, or alveoli.
Functionally, the respiratory system consists of ..?
respiratory and conducting zones.
Respiratory zone consist of.. ?
it is the actual site of gas exchange.. made up of the respiratory bronchioles, alveolar ducts, and alveoli.
Conducting zone consist of.. ?
sometimes called the dead air space, includes all other respiratory passageways, which serve as fairly rigid conduits to allow air to reach the gas exchange sites.