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Birth

Process of Human Birth

QuestionAnswer
Gestation Period of Humans is 280 days
Once placenta is established, it starts secreting progesterone hormone
Disturbance in secretion of Progesterone may result in Premature Birth or Miscarriage
Human embryo remains enclosed in Amniotic sac
Amniotic Sac is filled with Amniotic fluid
Amniotic Fluid is Protective & Shock absorptive
During pregnancy pituitary gland produces Luteotropic Hormone ( LTH )
placenta in human secretes Human placental Lactogen ( hPL ): a placental protein hormone that rises steadily and peaks at 34weeks of gestation.
from 3rd month of pregnancy, Human embryo is referred as Fetus
All Major Organs of human embryo are formed by the 12th week of pregnancy
Fetal hypothalamus-pituitary-adrenal (HPA) The center of mechanisms controlling fetal readiness for birth, survival after birth and, in several species, determination of the timing of birth
Corticosteroids is secreted by fetal adrenal gland
Corticosteroids causes DECREASE in Progesterone production
Decrease in level of Progesterone causes the Pituitary Gland to produce Oxytocin Hormone
Oxytocin induces labour pain ; Contractions
During labour the Cervix the Cervix Dilates
what happens to Umbilical cord upon delivery The umbilical cord is ligated and the baby is released from the mother
After birth occurs within 10-45 min after delivery
Average loss of blood during after birth is 350cm3
Created by: 72039_x
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