Where are the target cells for oxytocin located?

a. Renal tubules
b. Thymus
c. Liver
d. Uterus

ANS: D
Oxytocin causes uterine contraction and lactation in women and may have a role in sperm motil-ity in men. Oxytocin does not stimulate the renal tubules, the thymus, or the liver.