Dilation of the Cervix

Question 1

What happens during the dilation of the cervix?

Answer 1

• the myometrium starts contracting

Question 2

What is the nature of contractions during the dilation of the cervix?

Answer 2

• contractions are initially slow and rhythmic
• later become intense and more frequent

Question 3

What do the uterine muscle contractions do?

Answer 3

• force the amnion and foetus towards the cervix
• cause the cervix of the uterus to dilate

Question 4

At what size is the cervix considered fully dilated?

Answer 4

• about 10 centimetres

Question 5

What happens when the cervix is fully dilated?

Answer 5

• the increased pressure causes the amnion to break and release amniotic fluid
• which passes out through the birth canal (vagina)

Question 6

What is it commonly called when the amnion breaks and releases amniotic fluid?

Answer 6

• ‘breaking of the waters’