Hormones during labour

Question 1

What is labour

Answer 1

regular, coordinated muscular contractions of the uterus which leads to effacement (thinning) and dilation of cervix
followed by expulsive contraction, birth of baby and placenta

Question 2

what happens to myometrium cells during labour?

Answer 2

change structure so they can contract greater

Question 3

Cervical changes during labour

Answer 3

cervix ripens and due to its stretching-releases oxytocin from posterior pituitary gland
increases uterine activity and labour begins

Question 4

what does CRH-Corticotrophin releasing do during labour

Answer 4

under influence of oxytocin it binds to receptors and promotes uterine contraction

Question 5

what does Prostaglandis during labour

Answer 5

stimulates smooth muscle fibres to contact and increase calcium levels

Question 6

what does Oxytocin do during labour

Answer 6

released during ripening of the cervix, release of protaglandis

Question 7

what does Oestrogen do during labour

Answer 7

Facilitates myometrium contractions

Question 8

What does progesterone do during labour

Answer 8

Progesterone decreases, oestrogen rises and increased oestrogen to progesterone ratio so oestrogen can dominate