DEVELOPMENT OF THE HUMAN EMBRYO AND FGETUS 



PLATE XCI 



393 



a 





V 



d 



O ^e 



'f 



'e 'J 



Fig. 1. 



Fig. 2. 



Fig. 3, 



Ft.;. 4. 



PLATE XOl— continued 



Fig. 4. — Coronal and sagittal sections of human uterus drawn over half-inch squares to show the natural size of the organ. 

 The same letters are employed in Figs. A and B. 



A (Coronal section), a, h. Mesial line section of uterus, showing fundus {it) and external os uteri (/)) ; c, <■', section of upper 

 portion of vagina ; d, e, f, g, portions into which the uterus may be divided ; h, i, right and left Fallopian tubes entering 

 the triangular-shaped cavity of the uterus ; ;, contraction corresponding with the internal os uteri and separating the 

 triangular cavity of the uterus from the spindle-shaped cervix of the uterus ; Ic, line intersecting the spindle-shaped cervix of 

 the uterus. 



B (Sagittal section). <t, h, Mesial line section of uterus, showing fundus (») and external os uteri (6) ; c, c, section of upper 

 portion of vagina ; d, e, f, portions into which the uterus may be divided ; j, constriction corresponding with the internal os uteri ; 

 k, line intersecting the spindle-shaped cervix of the uterus (after Fothergill). 



VOL. I, 3d 



