Menstrual cycle. Flashcards
FSH binds to the ovaries causing what?
Development of ovarian follicles
Secretion of oestrogen
Secretion of inhibin.
The follicle most sensitive to FSH is known as what?
The Graffian follicle.
LH binds to the ovaries causing what?
Production of Presterone.
Conversion of the graffian follicle to the progesterone producing corpus luteum
Progesterone causes what?
It causes the endometrium to become receptive to implantation?
What blood test to check for ovarian reserve?
AMH (anti mullerian hormone)
In pregnancy, GnRH, LH and FSH all remain inhabited which causes cessation of menses.
…
What part of the cycle is progesterone as its highest?
Higher in the latter half of the cycle.
The 1st follicle to become dominant is called what? What dopes oil produce?
The 1st follicle to become dominant is the graffian follic,e it produces large amounts of oestrogen.
Oestrogen from the graffian follicle causes what?
Endometrial thickening.
THinning of cervical mucus.
Initial inhibition of LH but when the ovum is mature, oestrogen reaches a threshold which causes the LH surge.
LH causes the graffian follicle to become what?
To become the corpus luteum.
What does the corpus luteum produce?
Progesterone.
IF the ovum is fertilised what does it produce?
HCG.
Progesterone does what to the endometrium?
Make the endometrium receptive to implantation.
