Chapter 23 - Respiratory System

" Now you know why I will not tell funny jokes "

Respiration - p. 465 + 509

Pharynx - p. 510

Larynx - p. 510

Trachea - p. 510

Bronchi (Bronchus) - p. 510

          Bronchioles - p. 510

          Alveoli - p. 510

Epiglottis - p. 480

          Heimlich maneuver - p. 513

Pleural membrane

Diaphragm - p. 511

Intercostal muscles - p. 511

Inspiration - p. 511

Expiration - p. 511

Tidal Volume

Vital Capacity

Respiratory pigments - p. 512

          Hemoglobin - p. 512

                    Heme - p. 512

Atmospheric air

Exhaled air




                                                     

Pathway of Air:

Mouth or nose (hairs act as a filter) ------> Pharynx (shared by digestive and respiratory systems) -------> Larynx (contains vocal cords - voice box) -------> Trachea (mucus elevator) ------> Bronchi (one bronchus to each lung) -------> Bronchioles (million per lung) ------> Alveoli (clusters of tiny air sacs).

Composition of : Atmospheric air: Exhaled air: 21% - Oxygen 16% - Oxygen .04% - CO2 4.4% - CO2 79% - Nitrogen 79% - Nitrogen

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Last updated on 25 March 2011