SECRETION OF BILE. 



625 



Fig. 234. 



Fig. 235. 



"",3 



1, angular lobules in a state of Anosmia, as 

 they appear on the external surface of the liver ; 

 2, interlobular spaces ; 3, interlobular fissures ; 

 4, interlobular veins, occupying the centres of 

 the lobules; 5, smaller veins, terminating in the 

 central veins. 



1, rounded lobules in first stage of Hepatic Ve- 

 nous congestion, as they appear on the surface 

 of the liver; 2, interlobular spaces and fissures. 



than the margins. An appearance more frequently offered after death, how- 

 ever, is that represented at Fig. 235, and termed by Mr. Kiernan the first stage 

 of Hepatic Venous congestion. In this, the isolated centres of the Lobules alone 

 present the colour of sanguineous congestion; and the surrounding substance 

 varies from a yellowish-white, yellow, or greenish colour, according to the 

 quantity and quality of the Bile which it contains'. This accumulation of the 

 blood in the Hepatic Veins, and the emptiness of the Portal plexus, seem due 

 to the continuance of capillary action after the general circulation has ceased; 

 a circumstance to which we find an exact parallel, in the emptiness of the 

 systemic arteries, and the fulness of the veins, after most kinds of death. In 

 the second stage of Hepatic Venous congestion, the accumulation of blood is 

 found not only in the Intralobular Veins, but even in parts of the Portal or 

 Lobular Venous plexus. The parts which are freest from it are those sur- 



Fis?. 236. 



A, lobules in the second stage of Hepatic Venous 

 congestion ; B, and c, interlobular spaces ; i>, con- 

 gested intralobular veins; E, congested patches, 

 extending to the circumference of the lobules ; 

 F, non-congested portions of lobules. 



53 



A, lobules as they appear on the surface in a 

 state of Portal Venous congestion ; B, interlo - 

 bular spaces and fissures ; c, intralobular hepatic 

 veins, containing no blood j D, the central por- 

 tions in a state of anaemia; E, the marginal por- 

 tions in a congested state. 



