Question

which of the following ovarian hormones is involved in a positive feedback loop with the hypothalamus and the anterior pituitary? multiple choice estrogen luteinizing hormone gonadotropin releasing hormone gonadotropin

Explanation:

Luteinizing hormone (LH) is released by the anterior pituitary, not an ovarian hormone. Gonadotropin-releasing hormone (GnRH) is from the hypothalamus, and gonadotropin is a general term for pituitary hormones (LH and FSH). Estrogen, an ovarian hormone, triggers a positive feedback loop with the hypothalamus and anterior pituitary as its levels rise, stimulating increased GnRH and LH release to trigger ovulation.

Answer:

A. Estrogen