POULTRY DISEASES AND THEIR TREATMENT 



head, is protected by the cranial bones. It 

 is milky white except where the blood ves- 

 sels may be seen. 



The windpipe connects the larynx at the 

 throat with the lungs branching into the two 

 bronchi. 



The lungs, situated in the upper portion 

 of the thoracic abdominal cavity, are firmly 

 attached to the ribs, in the interspaces be- 

 tween which they fit. They are flattened 

 and oval in shape, bright red in color, and 

 loose and spongy in texture. 



The heart is cone-shaped. The lower 

 portion rests between the lobes of the liver. 

 The heart is red and is inclosed in a sac 

 (the pericardium) that is easily removed. 



The liver, situated a little lower down 

 than the heart, consists of two lobes. The 

 right lobe is often larger than the left which 

 may be cleft at the lower end. The left 

 lobe covers the true stomach and part of the 

 gizzard. If there is some delay in holding 

 a post-mortem examination the edges of the 

 lobes of the liver become discolored. Nor- 

 mally the color is a purplish red. 

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