RESPIRATORY SYSTEM4/25/19
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DO NOW‣ Describe the roles of the pulmonary artery
and the pulmonary vein
‣ Study for heart quiz
QUIZ‣ You have 7 min
‣ If you’re done, flip it over and wait quietly
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BLOOD VESSELS‣ Arteries, veins
‣ Capillaries - smallest vessels (as thick as one red blood cell)
‣ Allows diffusion of gases, nutrients, and wastes
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RESPIRATORY SYSTEM‣ Role: Gas exchange (oxygen in, carbon
dioxide out)
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1. NOSE/NASAL CAVITY‣ Air entry/exit
‣ Warms and moistens air
7. PHARYNX‣ Directs air to larynx
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3. LARYNX‣ Contains vocal chords
‣ Epiglottis (attached to larynx) prevents food from entering windpipe
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5/9. RIGHT & LEFT BRONCHUS ‣ Directs air from trachea to reach both lungs
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10. BRONCHIOLE ‣ Smaller branches of bronchus
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11. ALVEOLUS‣ Little air sacs
‣ Where gas exchange occurs
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6. DIAPHRAGM ‣ Muscle that allows lungs to expand
‣ Contraction of diaphragm -> negative pressure in lungs -> air flows in
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BRONCHOSCOPY
▸ https://www.youtube.com/watch?v=KqZc1JqArco
▸
LUNG DISSECTION
▸ https://www.youtube.com/watch?v=9xhxALk9gm8
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SMOKER LUNG VS. NONSMOKER LUNG
▸ https://www.youtube.com/watch?v=6wsXee9SZ04
▸
HOW DOES ASTHMA WORK?
▸ https://www.youtube.com/watch?v=PzfLDi-sL3w
▸
WRITTEN SUMMARYPAGE 138 ALL CONCEPTS SUMMARIZED
HOMEWORKRESPIRATORY SYSTEM WORKSHEET