ch Upper respiratory tract.finished.pptx

upper respiratory tract inf

1. AB 1 Respiratory System

2. 2 AB

3. Respiration In physiology,  respiration  is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction 3 AB

4. AB 4 Includes … exchange of gases between air and blood ( external respiration ) blood and tissue fluid ( internal respiration ) use of O 2 in cellular metabolism ( cellular ) Ventilation of lungs (breathing) is necessary for respiration RESPIRATION

5. 5 AB

6. AB 6 The respiratory system is made up of the organs involved in breathing and consists of the: Nose Pharynx Larynx Trachea Bronchi Lungs Pleural membrane Muscles of respiration

7. AB 7 Conducting division passages serve only for airflow nostrils to bronchioles Airflow in lungs bronchi  bronchioles  alveoli Respiratory division only site where gas exchange occurs alveoli and alveolar sacs General aspects of Respiration

8. AB 8

9. AB 9 Includes : Nose Nasal cavity Frontal sinuses Maxillary sinus Larynx Trachea The upper respiratory tract

10. AB 10

11. AB 11 The lower respiratory tract includes the: Lungs Bronchi Alveoli

12. AB 12

13. AB 13 The upper respiratory tract NOSE Functions Warms, filters and cleanses, humidifies inhaled air Detects odours Resonating chamber that amplifies the voice

14. AB 14 Nasal conchae three bony protrusions covered with mucous membranes on lateral wall of nasal cavity Meatuses narrow air passage beneath each conchae narrowness and turbulence ensures air contacts mucous membranes

15. AB 15

16. AB 16

17. AB 17 PHARYNX Regions of Pharynx: Naso Pharynx Oro Pharynx Laryngo Pharynx

18. AB 18 Nasopharynx Nasal part of pharynx

19. AB 19 Oropharynx From oral cavity to laryngopharynx

20. AB 20 Laryngopharynx Common passageway for respiratory and digestive system

21. AB 21 Functions Passageway for air and food Warming and humidifying Taste Hearing Protection Speech – resonating chamber of sound PHARYNX

22. AB 22 Known commonly as the voice box or “ Adam’s apple ", an organ involved in the production of sound and also serves to protect the upper part of the trachea (windpipe). The larynx houses the vocal cords and is shaped like a funnel, with walls of cartilage and a highly complicated system of muscles . It lies just below where the tract of the pharynx splits into the trachea and the oesophagus . Larynx

23. AB 23 Larynx

24. AB 24 FUNCTIONS OF LARYNX Phonation (voice production). The production of voice in terms of three components: the production of airflow, the Production of sound the articulation of voice.

25. AB 25 FUNCTIONS OF LARYNX The larynx functions in deglutition (swallowing). The most important function of the larynx is to prevent choking. When a person swallows, the epiglottis descends like a lid over the larynx, directing food into the esophagus thus helps protect the airway. Passageway for air, i.e. breathing.