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Contractions of the uterus require energy, so the longer the mother is in labor the more energy she expends. When the mother is depleted of energy, the contractions become weaker and labor will become increasingly longer. [1] Antibiotics are also an important treatment as infection is a possible result of obstructed labor. [11]
The Ferguson reflex (also called the fetal ejection reflex) is the neuroendocrine reflex comprising the self-sustaining cycle of uterine contractions initiated by pressure at the cervix, more precisely, the internal end of cervix, or vaginal walls. It is an example of positive feedback in biology. The Ferguson reflex occurs in mammals.
Toward the end of the pregnancy, when the cervix thins, some blood is released into the cervix which causes the mucus to become bloody. As the pregnancy progresses into labor, the cervix begins to dilate and the mucus plug is discharged. The plug may come out as a plug, a lump, or simply as increased vaginal discharge over several days. Loss of ...
These labour contractions are characterized by their rhythmic tightening and relaxation of the myometrium, the most prominent uterine muscle. Labour contractions primarily serve the purpose of opening and dilating the cervix, [7] which leads to the assisting of the passage of the baby through the vaginal canal during the first stage of labour.
In the later stages of pregnancy, the cervix may already have opened up to 1–3 cm (or more in rarer circumstances), but during labor, repeated uterine contractions lead to further widening of the cervix to about 6 centimeters. From that point, pressure from the presenting part (head in vertex births or bottom in breech births), along with ...
After birth, the fundus contracts downward into the pelvis one centimeter each day. After two weeks the uterus will have contracted and return into the pelvis. [9] The sensation and strength of postpartum uterine contractions can be stronger in women who have previously delivered a child or children. [10]
Bloody show or show is the passage of a small amount of blood or blood-tinged mucus through the vagina near the end of pregnancy.It is caused by thinning and dilation of the cervix, leading to detachment of the cervical mucus plug that seals the cervix during pregnancy and tearing of small cervical blood vessels, [1] and is one of the signs that labor may be imminent. [2]
Second stage of labor starts when the cervix is dilated to 10 cm and finishes with the birth of the baby. This stage is characterized by strong contractions and active pushing by the mother. It can last from 20 minutes to 2 hours. [16] Third stage of labor starts after the birth of the baby and is finished when the placenta is delivered. [15]