Fill-in the blanks to complete the following statements.
a. The vesical venous plexus drains into the_______________________________.
b. The ovarian venous plexus drains into the_______________________________.
c. The uterine venous plexus drains into the_______________________________, traveling upward on either side ofthe pelvis.
d. The uterine veins and superior vesical veins drain into theanterior trunks of the _______________________________.