Respiratory system. Respiratory System Function: Bringing Oxygen into the body, and removing carbon...
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Transcript of Respiratory system. Respiratory System Function: Bringing Oxygen into the body, and removing carbon...
![Page 1: Respiratory system. Respiratory System Function: Bringing Oxygen into the body, and removing carbon dioxide and water vapor.](https://reader035.fdocuments.in/reader035/viewer/2022062519/5697bfea1a28abf838cb7331/html5/thumbnails/1.jpg)
Respiratory systemRespiratory system
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Respiratory SystemRespiratory System
• Function: Bringing Oxygen into the body, and removing carbon dioxide and water vapor.
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Respiratory SystemRespiratory System
• What gases are in our atmosphere?
78% Nitrogen21% Oxygen1% Argon
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Respiratory SystemRespiratory System• What is the job of the
nose?: • Cilia (small hairs) filter out
dirt• Moistens and warms the air
you breathe
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This tissue lines the trachea and upper This tissue lines the trachea and upper respiratory tract, and is responsible for respiratory tract, and is responsible for
sweeping debris out of your lungs, up your sweeping debris out of your lungs, up your wind pipe, and into the back of your throat wind pipe, and into the back of your throat
where you’ll either a) cough it out or b) where you’ll either a) cough it out or b) swallow it.swallow it.
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Respiratory SystemRespiratory System
Pharynx• Part of both
respiratory & digestive systems
• Aids in swallowing
• Houses the tonsils
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TonsilsTonsils
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EpiglottisEpiglottis
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LarynxLarynx• Generates
sound• Contains
vocal chords • Open for
singing, closed for talking
• vocal chords video
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TracheaTrachea
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TracheotomyTracheotomy
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Bronchi/bronchiolesBronchi/bronchioles
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Smallest Part of Lung= Smallest Part of Lung= AlveoliAlveoli
• Alveoli: air sacks where gas is exchanged• Surface area of a tennis court
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Nose, pharynx, larynx, Nose, pharynx, larynx,
trachea, bronchi, trachea, bronchi,
bronchioles, lungsbronchioles, lungs
NosePharynx
Trachea
Larynx
LungBronchi
Bronchioles
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Respiratory SystemRespiratory System
• Diaphragm:oDome
shaped muscle
oLocated at base of rib cage
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Respiratory SystemRespiratory System
• Inhalation:oRib muscles and
diaphragm contractoRib cage expandso Lung volume
increasesoAir pressure in
lungs decreasesoAir flows into lungs
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Respiratory SystemRespiratory System
• Exhalation:oRib
muscles/diaphragm relax
oRib cage becomes smaller
oAir pressure in lungs increases
oAir flows out of lungs
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Oxygen and Carbon Oxygen and Carbon Dioxide Dioxide
• Exchanged in the lungs through: Diffusion
• The process by which materials move from an area of:oHigh concentration to an area of low concentration
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AsthmaAsthma
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Lung CancerLung Cancer
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Non-smoker vs. Non-smoker vs. smokersmoker
http://www.youtube.com/watch?v=yskYG-EVlBY