[neverdem]

??!? Testosterone is mostly produced in the testicles. In women, most T is produced in the ovaries, although the amount is much less than in men.

I believe your right. IMHO, the author is probably confusing the specific hormone receptors, which are needed to complete a negative feedback inhibition loop, with the hormones.

[hellbender]

Yes. The hypothalamus signals the pituitary, which then signals the gonads to make sex hormones, which are monitored by the hypothalamus.