1. Respiratory System

2. Air sac air-filled spaces in the body alveoli very small air sacs; where air breathed in goes

3. Respiratory System Bronchial tubes two tubes at the end of the trachea, brings in air from trachea and helps clean lungs; one tube goes to right lung, one to left diaphragm sheet-like muscle separating the chest from the abdominal cavity; creates suction to draw in air and expand lungs

4. Respiratory System exhale to breathe out inhale to breathe in

5. Respiratory System larynx voice box lungs two respiratory organs

6. Respiratory System Nasal cavity helps with inhaling and exhaling of air through the nose pharynx throat; collects incoming air from the nose and passes air to the trachea

7. Respiratory System respiration inhaling and exhaling air, breathing ribs bones that protect and support the chest

8. Respiratory System sinuses hollow spaces in the bones of the head, helps regulate temperature of air breathed in windpipe windpipe; passage from pharynx to lungs

9. About this system… Uses lungs to breath in (inhale) and out (exhale)

10. Inhaling 1.Air enters through the nasal passage 2.Air travels through the throat to the trachea 3.The trachea divides into two tubes called the bronchial tubes 4.The bronchial tubes lead to the lungs 5.In the lungs, the bronchial tubes divide into smaller tubes called the bronchioles 6.At the ends of the bronchioles, there are air sacs 7.The diaphragm is at the bottom of the chest cavity.

11. Exhaling Carbon Dioxide is a waste product Cells need to get rid of carbon dioxide When blood cells absorb oxygen, it lets go of carbon dioxide.

12. Watch This!!

13. Check out this site!! http://www.e- learningforkids.org/Courses/Liquid_Animation /Body_Parts/Respiratory_System/index.html http://www.e- learningforkids.org/Courses/Liquid_Animation /Body_Parts/Respiratory_System/index.html