156 



VISCERAL ANATOMY. 



Lymphatics, accompany the blood vessels in two sets, a superficial set and 



a deep one. 



What Nerves supply the Liver ? Branches of the Hepatic Plexus, 

 which is formed by branches derived from the left pneumogastric, right phrenic 

 and solar plexus. 



Describe the Structure of the Liver. The substance of the liver is 

 FlG composed of numerous 



Lobules,' 1 of polygonal 

 shape, and about ^ of 

 an inch in diameter, clus- 

 tered around the sub- 

 lobular branches of the 

 hepatic veins, and con- 

 nected together by con- 

 nective tissue, 3 blood 

 vessels, ducts, 2 and lym- 

 phatics. Each lobule 

 consists of 



Hepatic Cells, each 

 about the J^TT OI " an 

 inch in diameter, 

 having a nucleus and 

 nucleolus, yellow coloring matter, glycogen granules, and oil globules. 

 Lobular Veins, 3 forming a plexus in the lobule. ] . 



Intra-lobular Vein\K the centre of each lobule. } ^ 

 Plexuses, of lymphatics, nerves, and bile-ducts. 



What is the Capsule of Glisson ? The areolar tissue which surrounds 

 the hepatic vessels in the transverse fissure, and accompanies them in their 

 course throughout the substance of the liver. It is continuous with the fibrous 

 covering of the organ. 



How may the Portal Veins be distinguished from the Hepatic, on 

 section of the Liver ? The portal veins remain closed, being surrounded 

 by the capsule of Glisson. The hepatic veins gape open, being adherent to 

 the liver substance. 



Describe the Gall-bladder. It is a pear-shaped bag, 3 to 4 inches 

 long, an inch in greatest diameter, holding from 8 to 12 fluid drachms, 

 invested by peritoneum on its under surface and fundus, formed of a fibro- 

 muscular coat and lined by a mucous one, lying in a fissure on the undei 

 surface of the liver, dose to its anterior border, and directed obliquely down- 

 wards, forwards, and to the right. Its 



