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Question
Which of these is not an important component of initiation of parturition in humans?
Which of these is not an important component of initiation of parturition in humans?
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Solution
The correct option is A Release of prolactin
The expulsion of a completely developed foetus is called parturition.
Progesterone is a pregnancy maintaining hormone and it inhibits uterine contraction to prevent preterm delivery.
Progesterone levels fall drastically during parturition and this leads to delivery of the baby.
Estrogen levels increase during parturition. Estrogen promotes parturition by dilating the cervix.
Therefore, parturition is associated with a rise in maternal estrogen and fall in progesterone.
Oxytocin hormone released by the maternal pituitary gland acts on the uterine muscles and causes stronger uterine contractions. This causes the expulsion of the baby.
Prostaglandins are synthesized within the human foetal membranes and act to ripen the cervix and contract the myometrium.
Prolactin stimulates milk production after childbirth.
The expulsion of a completely developed foetus is called parturition.
Progesterone is a pregnancy maintaining hormone and it inhibits uterine contraction to prevent preterm delivery.
Progesterone levels fall drastically during parturition and this leads to delivery of the baby.
Estrogen levels increase during parturition. Estrogen promotes parturition by dilating the cervix.
Therefore, parturition is associated with a rise in maternal estrogen and fall in progesterone.
Oxytocin hormone released by the maternal pituitary gland acts on the uterine muscles and causes stronger uterine contractions. This causes the expulsion of the baby.
Prostaglandins are synthesized within the human foetal membranes and act to ripen the cervix and contract the myometrium.
Prolactin stimulates milk production after childbirth.
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