1. RESPIRATORY SYSTEM LUNGS & AIR PASSAGES

2. Function: n TAKE IN OXYGEN – GAS NEEDED BY ALL BODY CELLS n REMOVING CARBON DIOXIDE – GAS THAT IS A WASTE PRODUCT PRODCUED BY THE CELLS

3. HOW MUCH O2 DO WE HAVE? n FOUR TO SIX MINUTES SUPPLY

4. RESPIRATORY SYSTEM n MUST WORK CONTINOUSLY OR DEATH WILL OCCUR

5. RESPIRATORY SYSTEM n NOSE n PHARYNX n LARYNX n TRACHEA n BRONCHI n ALVEOLI n LUNGS

6. NOSE n TWO NOSTRILS (NARES) – OPENINGS WHICH AIR ENTERS

7. NASAL CAVITY n TWO HOLLOW SPACES n LINED WITH A MUCOUS MEMBRANE n RICH BLOOD SUPPLY n WARMS AIR n FILTERS AIR n MOISTENS AIR

8. CILIA n TINY HAIRLIKE STRUCTURES IN NASAL CAVITY n TRAPS DIRT n TRAPS PATHOGENS n TRAPPED PARTICLES PUSHED TOWARD ESOPHAGUS – SWALLOWED

9. PHARYNX n THROAT n LOCATED BEHIND THE NASAL CAVITIES n AIR LEAVES NOSE & ENTERS PHARYNX

10. THREE SECTIONS OF THE PHARYNX n NASOPHARYNX n OROPHARYNX n LARYNGOPHARYNX

11. LARYNGOPHARYNX n BOTTOM SECTION OF PHARYNX n BRANCHES INTO – TRACHEA n CARRIES AIR TO AND FROM THE LUNGS – ESOPHAGUS n CARRIES FOOD TO STOMACH

12. LARYNX n EPIGLOTTIS – PIECE OF CARTILAGE – LEAF LIKE STRUCTURE – CLOSES THE OPENING INTO LARYNX DURING SWALLOWING – PREVENTS FOOD & LIQUIDS FROM ENTERING RESPIRATORY TRACT

13. EPIGLOTTIS

14. LARYNX n VOICE BOX – BETWEEN THE PHARYNX & TRACHEA n CARTILAGE CALLED – ADAM’S APPLE

15. LARYNX n VOCAL CORDS – TWO FOLDS n OPENING BETWEEN VOCAL CORDS – GLOTTIS n AIR ENTERS LUNGS – VOCAL CORDS VIBRATE n PRODUCE SOUND OR SPEECH

17. TRACHEA OR WINDPIPE n TUBE EXTENDING FROM LARYNX TO CENTER OF CHEST n CARRIES AIR BETWEEN PHARYNX & BRONCHI n SERIES OF C-SHAPED CARTILAGE – OPEN ON THE DORSAL SURFACE – HELPS KEEP TRACHEA OPEN

18. TRACHEA OR WINDPIPE

19. BRONCHI n TWO DIVISIONS OF TRACHEA – NEAR CENTER OF CHEST n BRONCHUS – ENTERS LUNG – CARRIES AIR – TRACHEA TO LUNGS n LUNGS – BRONCHI DIVIDE INTO SMALLER BRONCHI

20. BRONCHI

21. SMALLEST BRANCHES n BRONCHIOLES – END IN AIR SACS CALLED ALVEOLI

22. ALVEOLI n AIR SACS – RESEMBLE BUNCH OF GRAPES – ONE LAYER OF SQUAMOUS EPITHELIUM TISSUE – RICH NETWORK OF BLOOD CAPILLARIES – CAPILLARIES n ALLOW OXYGEN & CARBON DIOXIDE TO EXCHANGE BETWEEN LUNGS & BLOOD

23. ALVEOLI

24. http://www.borg.com/~lubehawk/hrespsys.htm

25. http://mhln.co m

26. LUNGS n RIGHT LUNG – 3 SECTIONS OR LOBES n SUPERIOR, MIDDLE & INFERIOR n LEFT LUNG – TWO LOBES n SUPERIOR & INFERIOR – SMALLER n HEART LIES MORE TO THE LEFT SIDE OF CHEST

27. LUNGS

28. DIAPHRAGM

29. INTERCOSTALS

30. PLEURA n MEMBRANE OR SAC ENCLOSING EACH LUNG n THORACIC CAVITY – BOTH LUNGS – HEART – MAJOR BLOOD VESSELS

31. PNEUMOTHORAX-AKA: Blown lung or collapsed lung

32. How do you fix it? n Chest tubes!

33. THE END