Sexual behavior in a castrated male rat can be restored by infusion of ________ into the ________.
A) dopamine antagonists; medial preoptic area
B) apomorphine; medial amygdala
C) glutamate; spinal cord
D) opiates; spinal cord
E) testosterone; medial preoptic area

Question

Quizplus · Accepted Answer

Castration removes the primary source of testosterone production in males, leading to a loss of sexual behavior. Infusion of testosterone into the medial preoptic area of the brain can restore sexual behavior in castrated male rats. Therefore, choice E (testosterone; medial preoptic area) is the best answer. The other choices are not consistent with the known mechanisms of sexual behavior in male rats.

Sexual Behavior in a Castrated Male Rat Can Be Restored