AND ABDOMINAL VISCERA. 21 
splenic omentum. It is wider at the upper end; the 
blood-vessels enter it along the line of attachment of 
the omentum. 
8. The Liver. The anterior surface is convex, and 
fits against the arched diaphragm to which it is at- 
tached by a median fold of peritoneum, the szspen- 
sory ligament. The organ is relatively large in the 
dog, and, as in other mammals, may be divided into 
two principal lobes, the right and the left. Each of 
these is again ‘subdivided into smaller lobes, the left 
into two and the right into four, the homologies of 
which are not properly known. They may be named 
as follows: 
a, THe Lerr CrEentTrat Lose lies against the left 
half of the diaphragm. 
b. Tue Lerr Latrerat Lose, the largest lobe of 
the liver, lies between the left central and the cardiac 
end of the stomach. 
c. THe Ricur Centra Lose lies against the right 
half of the diaphragm; it has a deep groove on its 
under surface for the reception of the gall-bladder. 
d. Tue Ricutr Larerat LoBE is just posterior to 
the right central. 
e. THE CauDATE LOoBE, posterior to the last, lies to 
the right of and dorsal to the pyloric end of the stom- 
ach, extending backward to the right kidney. 
f, THE SPIGELIAN Lose, the smallest lobe of the 
liver, projects into the small curvature of the stomach ; 
it lies dorsal to a fold of the peritoneum connect- 
ing the liver to the stomach, the /epato-gastric 
oment iit. 
g. THE GALL-BLADDER is a large, thin-walled oval 
sac imbedded in the right central lobe. 
h. Tue Bie-puct has the arrangement shown in 
