DIGESTIVE GLANDS. 



217 



cells and sister cells of the columnar epithelium of 

 the alimentary tract. 



The fully developed liver consists of five lobes: 

 right lobe, left lobe, quadrate, caudate, and spigelian 

 lobes. Five fissures: umbilical, ductus venosus, 

 transverse, gall bladder, and vena cava fissures. Five 

 ligaments : ligamentum teres (remnant of the umbilical 

 vein), falciform, coronal, and two lateral ligaments. 



Interlobular -vein. 



p Interlobular bile duct. 



Intralobular bile duct. 

 Liver cells. 



jr- Intralobular vein. 



Sublobular vein. 

 Fig. 163. Diagram of liver lobule. 



The description of these structures belongs to gross 

 anatomy. 



The liver is the largest gland in the body, weigh- 

 ing from three to four pounds, or one-fortieth the 

 weight of the whole body. It measures ten to 

 twelve inches in its transverse diameter, six to seven 

 inches in its antero-posterior, and about three inches 

 thick at the back part of the right lobe, which is the 



