Illustration of cervical effacement and dilation in a full term pregnancy. Effacement is the thinning and shortening of the cervix in preparation for childbirth. Dilation is opening of the cervix. Both effacement and dilation are caused by uterine contractions. The cervix must be 100 per cent effaced and 10 centimetres dilated for delivery to begin. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / SUSAN LOCKHART |
Bildgröße: | 3467 px × 4691 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |