Changes in pregnancy Flashcards
What hormone is used to check if someone is pregnant
Human chorionic gonadotropin (hCG)
What produces hCG?
Placenta
Produced by trophoblasts when begin endometrial invasion
Function hCG?
Maintain corpus luteum
Stimulate oestrogen and progesterone production- prevent menstruation
What stimulates oestrogen and progesterone production?
hCG
Stimulate oestrogen and progesterone
Prevent menstruation
What hormone is detected in pregnancy tests?
hCG
What secretes prolactin? Function?
Anterior pituitary
Milk production, prevent ovulation
What produces relaxin?
Function relaxin?
Ovaries and placenta
Limit uterine activity, soften and ripen cervix
What softens and ripens cervix?
Relaxin
What secrete oxytocin?
Posterior pituitary
Function of oxytocin?
Stimulate uterine contractions
Trigger caring behaviours
What produces prostaglandins?
Function of prostaglandins?
Produced uterine tissues
Initiate labour
PGF2a- most abundant
What produces oestrogen and progesterone?
Trophoblast cells of placenta
What inhibits GnRH releae?
Increased progesterone
What occurs if GnRH is inhibited?
Low LH and FSH
No ovarian cycle
HCG decreases at end