The menstrual cycle

Question 1

Define menstrual cycle

Answer 1

Series of events that occurs in female from menarche to menopause under influence of endocrine system

Question 2

Range of menstrual cycle

Answer 2

Avg 28 days
Range 21 to 42 days

Question 3

Chence of couple conceiving in one menstrual cucle? (no bc, woman ovulating etc)

Answer 3

20-25%

Question 4

Hypothalamus function:

Answer 4

Releases hormones to anterior pituitary gland

Question 5

Anterior pituitary gland function:

Answer 5

Produces the gonadotrophic hormones:
Follicle stimulating hormone (FSH)
Luteinising hormone (LH)
(both act on the ovary)

Question 6

Ovary produces…

Answer 6

Ovarian hormones Oestrogen and Progesterone which act on endometrium of uterus and breasts

Question 7

Uterine endometrium undergoes…

Answer 7

changes to prepare it to recieve and nourish the fertilised ovum (zygote)

Question 8

what are the three phase of the menstrual uterine cycle?

Answer 8

1
1Menstruation
2Proliferative phase
3Secretory/Luteal phase