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Respiratory system-gets oxygen to cells of your body and getting rid of carbon dioxide and breathing; involves the formation of ATP within cells; made up of nasal cavity, pharynx, larynx, trachea, bronchi and bronchioles, and lung Path of air-taking in air through nose or mouth; flows into pharynx; passes the epiglottis; moves through larynx; goes down windpipe trachea; bronchi; lead into lungs Trachea-tube like passageway that leads to two bronchi tubes; windpipe Epiglottis-piece of skin covers entrance to trachea when u swallow food Ciliated cells-in nasal cavity, trachea, and bronchi; lined with ciliated cells that secrete mucus; cilia beats upward where foreign material can be swallowed or expelled by coughing or sneezing Alveoli-(like balloons) sacs of the lungs where oxygen and carbon dioxide are exchanged by diffusion between the air and blood; at the ends of bronchioles; surrounded by networks of tinny blood vessels; blood in these vessel come from cells of body and contain......

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Approximate Word Count: 659
Approximate Pages: 3 (250 words per double-spaced page)

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