1. THE RESPIRATORY SYSTEM BillNye-Respiration - YouTube

2. I. MAIN FUNCTION OF RESPIRATION * provide the body with OXYGEN it needs to have ENERGY and to grow * transport GASES to and from the CIRCULATORY SYSTEM

3. II. RESPIRATORY STRUCTURES  LUNGS * sites of GAS EXCHANGE * left (2 lobes) and right (3 lobes)

4.  MOUTH AND NOSE * air FILTERS through the HAIRS * air MOISTENED and WARMED * lined with CILIA

5.  PHARYNX * passageway for FOOD and AIR

6.  EPIGLOTTIS * flap of CARTILAGE that covers the AIR passage when food is SWALLOWED * OPEN when breathing

7.  LARYNX * VOICE BOX * contains VOCAL CORDS(two ligaments) beth's vocal cords

8.  TRACHEA * WINDPIPE * ciliated, CARTILAGINOUS tube

9.  BRONCHI * TWO tubes that lead to LUNGS

10.  BRONCHIOLES * smallest of branching BRONCHI

11.  ALVEOLI * clusters of tiny AIR SACS at the ends of the BRONCHIOLES * covered with CAPILLARIES (tiny blood vessels)

12.  DIAPHRAGM * dome-shaped SKELETAL MUSCLE * INHALE – contracts & moves DOWN * EXHALE – relaxes & moves UP How to save yourself if you're choking! - YouTube

13. ASTHMA COPD

14. CBS Evening News with Scott Pelley - CDC sends message with graphic anti-smoking ads - YouTube CBS Evening News with Scott Pelley - CDC sends message with graphic anti-smoking ads - YouTube