26 MUSCLES OF THE ABDOMEN 
ovary and communicating with the abdominal cavity 
by a small opening; its posterior end suddenly ex- 
pands into a horn of the uterus. 
b. THe Urerus consists of two horns, each begin- 
ning from the posterior end of the Fallopian tube, and 
a body formed by the fusion of the posterior portions 
of the horns. The body of the uterus is directly con- 
tinuous with the vagina. 
3. The Vagina is quite wide, and passes directly to 
the posterior to end in the vestibule or urino-genital 
canal. 
4. The Urethra. Immediately ventral to the vagi- 
nay ie the. bladder and “urethtay) Uhe slatter, runs 
along the ventral wall of the vagina, and finally the 
two unite within the pelvis to form the vestibule or 
urino-genital canal. 
5. The Vestibule formed as stated above, lies ventral 
to the rectum; andiopens to. the exterior, lt has 
very vascular walls. 
Lay open the vestibule carefully, beginning at the 
extertor, and cutting along the dorsal mid-line. 
6. The Clitoris, a small organ homologous with the 
penis of the male, is found just within the vestibule on 
its ventral wall. It possesses essentially the same 
structure as the penis, though on a smaller scale. It 
has a glans clitoridis and two corpora cavernosa con- 
nected with the ischia. 
7. Note the connection of the urethra and vagina 
with the vestibule. 
