viii . CONTENTS 



Page 



7. The Organs of Eespiration and the Respiratory Frocess — 



Description of the Respiratory Process 482 



The Lungs .--------.. 484 



The Larynx .-----... 4S5 



The Trachea ....-- . . . 4,s5 



The Bronchi ----- 4S6 



The Air-Ceils .-----. - . - - 4,S6 



Effects of Respiration 487 



Composition of the Air - . - 487 



Air after Respiration - - - 488 



Air-changes in the Blood - 489 



The Mechanism of Respiration - - 491 



The Nerves and Nerve-Centres of Respirution 494 



Asphyxia - - 494 



Ventilation ------------ 495 



Diseases of the Respiratory Organs - 497 



Catarrh or Cold - - - - 497 



Chronic Nasal Catarrh — Nasal Gleet - 499 



Hemorrhage ----- ----- 50 1 



Bleeding from the Nose — Epistaxis 503 



Pus in the Guttural Pouches -------- 504 



Diseases of the Larynx 507 



Laryngitis ----------- 507 



Roaring and Whistling - 510 



