Male and Female Physiology

Question 1

What are the female reproductive hormones?

Answer 1

Gonadotropin releasing hormone.
Gonadotropins - FSH and LH.
Steroid hormones - Oestrogen, Progesterone and Testosterone.

Question 2

What are the feedback mechanisms of Oestrogen and Progesterone?

Answer 2

Majority of cycle they operate a negative feedback system on the hypothalamus and the pituitary.

During the mid-cycle Oestrogen exerts a positive feedback on the hypothalamus to trigger the LH surge.

Question 3

What is the contents of a follicle?

Answer 3

Egg
Theca cells
Granulosa Cells

Question 4

When does ovulation occur after the LH surge?

Answer 4

36 hours

Question 5

What do granulosa cells release?

Answer 5

Oestrogen

Question 6

What do theca cells release?

Answer 6

Inhibin - inhibits FSH production.

Question 7

How does progesterone affect the endometrium?

Answer 7

Makes it thicker and increases its vasculature and glands, preparing it for potential implantation.

Question 8

If no fertilisation occurs, how long does the corpus luteum last?

Answer 8

14 days