NOTDONEFemale Repro Physiology

Question 1

What makes inhibin B, and what does it do?

Answer 1

Corpus luteum granulosa cells in the ovary.
Inhibit anterior pituitary FSH secretion.

Question 2

What do LH and FSH do in female gonads?

Answer 2

LH and FSH - oestrogen

LH only - progesterone

Question 3

Effects of oestrogen:

Answer 3

• Growth of ovarian follicles
• CYclical changes in endometrium
• Increased blood flow and contractility of uterus
• Increases uterus sensitivity to oxytocin
• Increased breast duct growth

Question 4

Describe oestrogen inhibition of FSH and LH

Answer 4

Oestrogen inhibits FSH.

At normal levels, oestrogen inhibits LH.

At high levels, oestrogen briefly increases LH levels.

Question 5

Effects of progesterone:

Answer 5

• Glandular changes of endometrium, cervix and vagina
• Prevents uterine contraction
• Stimulates lobule and alveoli development
• Supports lactation
• Stimulates thermogenesis and respiration

Question 6

Describe the feedback of progesterone

Answer 6

Inhibits LH

At large doses - prevents ovulation

Question 7