The combining forms referring to the two bean-shaped organs located on each side of the vertebral column on the posterior wall of the abdominal cavity are:
Aren/o and cyst/o.
Bnephr/o and vesic/o.
Cnephr/o and ren/o.
Dvesic/o and cyst/o.
Aren/o and cyst/o.
Bnephr/o and vesic/o.
Cnephr/o and ren/o.
Dvesic/o and cyst/o.