ORIGIN OF THE CORPUS LUTEUM 



175 



The cells of the young fully formed corpus luteum are sup- 

 ported by a reticulum of delicate connective-tissue fibrils with 

 denser strands along the septa. In sections stained by Mallory's 

 anilin-blue mixture and by the Bielschowsky technique as modi- 



grlc.4L | 



-ca: 



th.X.c. 



Fig. 25 Corpus luteum of pregnancy (embryos 20 mm. long). Formol fixa- 

 tion. Bielschowsky's silver-impregnation method, showing reticular fibrils. 

 X 1000. gr.l.c, granulosa lutein cells; th.l.c, theca lutein cells; cap., capillary 

 blood-vessel containing an erythrocyte. 



fied by Ferguson ('11), it is clear that neither the granulosa 

 nor the theca lutein cells are intimately related to the fibrils, 

 which form dense baskets about them, but are not found within 

 the cytoplasm of the 'lutein cells' of either type (fig. 25). In 



THE AMERICAN JOURNAL OF ANATOMY, VOL. 26, NO. 1 



