11-jade earth science.ppt - Respiratory System Lungs and Air Passages WHY ARE THEY NEEDED TAKE IN OXYGEN – GAS NEEDED BY ALL BODY CELLS REMOVING

11-jade earth science.ppt - Respiratory System Lungs and...

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Respiratory System Lungs and Air Passages
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WHY ARE THEY NEEDED? TAKE IN OXYGEN GAS NEEDED BY ALL BODY CELLS REMOVING CARBON DIOXIDE GAS THAT IS A WASTE PRODUCT PRODUCED BY THE CELLS
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RESPIRATORY SYSTEM CONSISTS OF : LUNGS AIR PASSAGES
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RESPIRATORY SYSTEM MUST WORK CONTINOUSLY OR DEATH WILL OCCUR
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RESPIRATORY SYSTEM NOSE PHARYNX LARYNX TRACHEA BRONCHI LUNGS ALVEOLI
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NOSE NOSTRILS (NARES) 2 OPENINGS WHERE AIR ENTERS
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NASAL SEPTUM WALL OF CARTILAGE DIVIDING THE NOSE INTO TWO HOLLOW SPACES
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NASAL CAVITIES TWO HOLLOW SPACES LINED WITH A MUCOUS MEMBRANE WHICH PRODUCES MUCOUS TO TRAP PATHOGENS (GERMS) AS AIR ENTERS THE CAVITIES, IT IS WARMED, FILTERED, AND MOISTENED
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CILIA TINY HAIRLIKE STRUCTURES IN NASAL CAVITY TRAPS DIRT AND PATHOGENS THE TRAPPED PARTICLES ARE THEN PUSHED TOWARD ESOPHAGUS AND SWALLOWED.
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OLFACTORY RECEPTORS LOCATED IN NASAL CAVITY SENSE OF SMELL
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PHARYNX ANOTHER NAME FOR THE THROAT LOCATED BEHIND THE NASAL CAVITIES AIR ENTERS FROM THE NOSE
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SECTIONS OF THE PHARYNX NASOPHARYNX OROPHARYNX LARYNGOPHARYNX
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  • Fall '17
  • jane smith

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