The respiratory system allows us to breathe by taking in oxygen and removing carbon dioxide. It contains key structures like the lungs, which get filled with oxygen and remove carbon dioxide, the larynx containing vocal cords, the trachea or windpipe connecting the mouth and nose to the lungs, and alveoli in the lungs where gas exchange occurs. The diaphragm helps with breathing by moving up and down to draw air in and out of the lungs.

1. The Respiratory System Alec Mojica 8-73

2. The Respiratory System allows us to breathe Most important part is lungs Lungs get filled with oxygen Blood comes in contact with oxygen Gets rid of waste called Carbon Dioxide Waste comes out when we exhaled

3. The Larynx Contain vocal chords Used when we breathe, talk, or swallow

4. The Trachea Also called windpipe Connects mouth and nose to lungs

5. The alveolus Small air bag Exchange of Oxygen and Carbon Dioxide happen here

6. The Bronchus Tube in lungs Connects trachea to lungs

7. The Bronchioles Thin air passage to lungs Leads to bigger airway

8. The Lungs Two organs in chest Take out carbon dioxide Brings in oxygen

9. Diaphragm Helps get air in and out of your lungs Does this by moving up and down

10. Bibliography http://www.kidsbiology.com/human_biology/respiratory-system.php http://library.thinkquest.org/5777/resp1.htm http://kidshealth.org/kid/htbw/lungs.html http://www.medterms.com/script/main/art.asp?articlekey=6224 http://www.medterms.com/script/main/art.asp?articlekey=5829 http://www.medterms.com/script/main/art.asp?articlekey=2212 http://medical-dictionary.thefreedictionary.com/bronchus http://medical-dictionary.thefreedictionary.com/bronchiole http://www.umm.edu/respiratory/images/respiratory_anatomy.jpg (Respiratory System picture) http://www.biologycorner.com/anatomy/respiratory/Larynx%20front.jpg (Larynx Picture) http://scapula.pl/anatomia/duze_rys/image961.gif (trachea picture) http://www.asthmahelpline.com/photos%20site/ALVEOLI.jpg (alveolus) http://www.medidoktor.hu/images/bronchi-bronchioles-alveoli.jpg (bronchus) http://www.uvm.edu/~inquiryb/webquest/sp09/cnclark/bronchioles.gif (bronchioles) http://www.thechildrenshospital.org/imgs/KidsHealth/kid/body/images_59265/1127505986415.internal_lungs260.gif (lungs) http://www.umm.edu/graphics/images/en/19380.jpg(diaphragm)