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. 



Interlubular vein. 



- Interlobvlar bile duct. 



Iniralobular bile duct. 

 Liver cells. 



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 



