View the animation below, then complete the quiz to test your knowledge of the concept.

1	Which of the following ovarian hormones is involved in a positive feedback loop with the hypothalamus and the anterior pituitary?
	A)	progesterone
	B)	luteinizing hormone
	C)	gonadotropin releasing hormone
	D)	estrogen
	E)	gonadotropin
2	Which of the following hormones is released by the anterior pituitary as a part of that positive feedback loop between it and the ovary?
	A)	progesterone
	B)	luteinizing hormone
	C)	gonadotropin releasing hormone
	D)	estrogen
	E)	gonadotropin
3	Which of the following hormones is released by the corpus luteum after ovulation and causes a negative feedback loop with the hypothalamus and the anterior pituitary?
	A)	progesterone
	B)	luteinizing hormone
	C)	gonadotropin releasing hormone
	D)	estrogen
	E)	gonadotropin
4	A positive feedback loop causes a self-amplifying cycle where a physiological change leads to even greater change in the same direction.
	A)	True
	B)	False
5	A negative feedback loop is a process in which the body senses a change, and activates mechanisms to reverse that change.
	A)	True
	B)	False