DISSECTION OF THE l><><: 



63 



\'v [ntsboostalb9. R unning along the intercostal spaces caudal to 

 the vessels, the intercostal nerves arc derived from the ventral primary 

 divisions of the thoracic Bpinal nerves. Each nerve supplies a lateral cutaneous 

 branch, which was encountered aboul midway between the vertebral column 



ami the Bternum when the thoracic wall was examined from the outside. 

 The termination of each nerve as a ventral cutaneous ramus has also been 

 displayed. 



Vesica fettta 

 Flo. 2r>. — Outline of the diaphragmatic surface of the livnr. 



Dissection.— The liver may no\v. be removed, but before doing this its 

 lobes and the arrangement of the peritoneum in association with it 

 should be examined. In removing the liver preserve the vena cava as 

 far as possible. 



Lobi hepatis. — Two deep fissures divide the substance of the liver into 

 three main lobes : a central and two lateral. The central lobe, readily dis- 

 tinguished by its position and the presence of the gall-bladder in association 



