Factors Affecting Labor. At least five factors affect the process of labor and birth. These are easily remembered as the five Ps: passenger (fetus and placenta), passageway (birth canal), powers (contractions), position of the mother, and psychologic response .
Unassisted Vaginal Delivery/Natural Childbirth Vaginal delivery is the most common and safest type of childbirth. You'll probably hear the term “natural childbirth” used to describe a vaginal delivery without medication for pain or to start or speed up labor.
At the end of an average 9 months of gestation, vigorous uterine contractions lead to the delivery of the foetus . This process is called parturition. Parturition is a neuroendocrine mechanism and is started by the signals from the fully developed foetus and the placenta, which produce the foetal ejection reflex.
Parturition: Childbirth, the process of delivering the baby and placenta from the uterus to the vagina to the outside world . Also called labor and delivery.
The steps involved in parturition are dilation, expulsion, and placental . Dilation is the first step of parturition where the cervix is fully dilated. Expulsion is the stage that includes full dilation and continues until birth. The placental is a stage that includes after birth and ends with delivery.Jul 11, 2020
Separation and delivery of the placenta The third stage is the delivery of your placenta. Your uterus will contract again, which helps the placenta separate from the wall of the uterus.
Labour has three stages: The first stage is when the neck of the womb (cervix) opens to 10cm dilated. The second stage is when the baby moves down through the vagina and is born. The third stage is when the placenta (afterbirth) is delivered.