FCETAL NUTRITION: THE PLACENTA 443 



an increase of superficies and of secreting epithelium, and are later 

 concerned in the attachment of the ovum. They have been recognised 



mm 



A- 



Sp 



FIG. 122. The uterine mucusa of the dog about tin- t \vriitv-thinl day of 

 pregnancy. (From Duval's " Le Placenta des Carnassiers," ./<>,: >/ 

 PAnat. etch fa /%*., 1893.) 



meg, Mesoblast ; ti\ trophoblast ; ', capillary layer ; <l, laver of glandular 

 detritus ; g, glands of compact layer ; .ty, dilated glands of spongy layer. 



by all the authorities with the exception of lioliinsim. 1 who states that 

 he can find no evidence that any ( ihc cryptK are other than the diu-ts 

 of the uterine glands. At tlie h'rst ami each succeeding priin-sti-uin 

 there is a marked hyper;cinia nt' the niin-osa, and from the niptim- ->f 



Robinson, Hunterian J^ectures, Jon/: <if A 



id I'hy*., vol. \.\.\\iii.. ]!M)4. 



