Principal Viscera of a Young Coch:, 



203 



REFERENCES. 



,j The under beak. 



b Membrane of the mouth at the side of the tongue. 



c Muscles of the tongue (os hyoides) and lower jaw. 



d A thin salivary gland, entering th.e mouth by several small orifices 



e A small salivarj- gland, wliose duct passes through the membrane o( 



the mouth at the side of the tongue — the right one is turned 



outwards to show these ducts. 

 / A small cartilage belonging to the cs hyoides. 

 g The fauces. 



h The oesophagus, above the crop. 

 t The crop laid open. 

 k The upper orifice into the crop. 

 ' The lower orifice. 

 VI The lower oesophagus. 

 « The gizzard. 



First turn of the duodenum. 

 p Second turn of ditto. 

 q The other intestines. 

 r The basis of the liver, the body of it being cut out to show the six 



orifices of the vena cava hefatka and vena poitartuii. 

 s The gall bladder. 

 / The spleen. 

 ;/ The two testicles. 

 V Attachment of the pericardium, within which is seen the heart, 



exposing the mouths of the vessels coming in and going out. 

 w The vence caver supeiiorcs. 

 x The two carotids and subdavians. 

 y The trachea. 

 z Suspensory muscles of the trachea. 



Fig. 57- 



