Tin: OBOAK8 01 i U INM.I: 01 Ul L u 1.1: 



into the K't't half !' ( In* |><-i -it-meal ca\ity. \\ln-n a> tin- liver grows out 



into the right ha'f more than into tin- left. In cons. : the 



formation of the li\vr and tin- le->er omeiit um, tin- greater om-ut uin. 



produced by tli- tor>ion of the Moiiiarh. i, .,n addition, which 



IN designated as it.-s anterham! er (atriuM bOMH "inentali I there 



i oino to 1-e associated \\itli the greater omentum tha 



body -cavity which lies behind tin- li\er and lesser oin.-iit inn. and wliicli 



in tin- adult | well known, onlv , 



foiaincn of \ViNvi.M\v) lyiiii: In-low the li-aiiu-nt uin hepato-duodc: 



Concerning the development of the conn <-e a subsequent part 



which treats of the diaphragm. 



Afl far as regards the conditions of form and size which the livi-r 

 l>n-eiits up to the time of lirtli. there are two points whicli are 

 worthy of attention : first, the liver early acijui iy extra- 



ordinary size; secondly, its two lobes are developed at first quite 

 symnu trie-ally. In the third month it nearly fills the whole body- 

 cavity ; it> tree >harp margin on which a deep incision between the 

 two lobes is observable reaches down almost to the inguinal region, 

 leaving here only a small space free, in which, upon opening the body- 

 cavity, loops of the small intestine are to be seen. It is a very vas- 

 cular organ, for a great part of the blood returning from the plat 

 to the heart passes through it. At this time the secretion of bile 

 lu-pns. although only to a slight extent. This increases in the>.o>inl 

 half of pregnancy. In conse nience of this the inte.-tine gradually 

 becomes filled with a hrownish-blaek ma>s. the meconium. This is 

 a n.ixture of bile with mucus and detached epithelial c 11s of the 

 intestine, to which is added ainniotic water with flak- s of eji<lenni> 

 and hairs that have been swallowed. After birth the ineconium i> 

 accumulated in the large intestine, from which it U BOOH afterwards 

 eliminated. 



In the second half of pregnancy the growth of the two lobes of 

 the liver becomes unequal, and the left i- -uij.i->id more and more in 

 si/.e by the light. Before birth the lower margin of the liver projects 

 downward tor some distance beyond the co>tal cartilages, almost to 

 the umbilicus. After birth it dimini>he> rapidly in >i/.e and weight, 

 in consequence of the change in the circulation produced by the pro- 

 cess of respiration. For the stream of MOM! which during embryonic 

 life has branched oil' from the umbilical \ein into the liver now ceases. 

 During the growth of tin* body the liver al>o in. >i/.e still 



further, but less than the body taken as a whole, SO that its relative 

 weight is constai tly undergoing reduction. 



