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The Respiratory System

Lauren Foster

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Across
1.located below chest cavity ; expand and inspands chest
4.each lung is divided into these
5.air reaches and leaves lungs through this
8.flexible tissue
10.forms the outer covering of te lungs
12.another word for breahing
14.extending from the larynx to the bronchial tubes
17.the act of breathing out
19.the wasre gas
20.passage that leads from back of mouth
22.located on both sides of the chest
23.linning of the nasal cavity
24.what livving things breathe in
26.sections of the trachea ; lead to lungs
27.contains nostrils ; for breathing or smelling
Down
2.the passages formed by mouth nose lungs and throat
3.the outer covering of the lungs
6.another word for chest
7.seperates nose into passageways
9.tiny air sas
10.area between back of nose and top of trachea
11.hair-like extentions of cells
13.to breathe in
15.protects the top of trachea
16.each breathe we take moves this
18.the presence of this in the air
21.voicebox
23.slimy substance
25.lungs and heart is in the _____ or chest cavity

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