Question

Which of the following is not involved in the initiation of parturition in humans?
A. Release of oxytocin
B. Release of prolactin
C. Increase in estrogen and progesterone ratio
D. Synthesis of prostaglandins

Answer 1

Parturition entails the improvisation of a complex range of physical events requiring the baby in the womb to rotate into the position of birth, which is followed by a cascade of endocrine alterations that end with successful delivery.

Complete solution:
The onset of parturition is labelled by oestrogen and progesterone levels. It is known as the dominance of oestrogen and has many negative impacts on the female body, including breast tenderness, accelerated ageing and cancer. The hormone prolactin is responsible for the production of milk at the end of the pregnancy. During the birth or commencement of the parenting process, it is not important. The prolactin levels rise when females are pregnant or have just delivered a baby, so they can produce breast milk. And if you're not pregnant, and if you're a man, you could have high prolactin levels. Parturition is the process of birth caused by oxytocin, which causes menstrual cramps. There is an increase in oxytocin secretion during the final phases of gestation, a hormone that is believed to evoke feelings of satisfaction, anxiety reduction, and feelings of calmness. The normal gestation phase takes several hours and has 3 stages. The first stage comprises a series of involuntary contractions caused by muscle walls and progressive cervical dilation. When the cervix is dilated more than approximately 4 cm in diameter, the current form of the first stage begins and then when the contractions become stronger and constant.
So, the correct answer is option B.

Additional Information: As the baby stimulates the cervix and vagina, oxytocin is further produced during childbirth, and it is believed to play a prominent part in linking a mother to her child and in defining maternal activity. Since the first day of your last menstrual period till the birth of the infant, a typical gestation period is 40 weeks. It is divided into three periods, called trimesters: trimester one, trimester two and trimester three. Through most of the maturation, the foetus endures several changes.

Note: As the baby develops, pregnant women will experience some complications and signs. There could be anaemia and mood variations. High blood pressure may be felt by an expectant mother, which enhances the risk of preterm birth and other associated dangers to the infant. The chance of experiencing gestational diabetes should be recognized by pregnant women. Women are supposed to gain weight during pregnancy, but symptoms that put mom and baby at threat can be associated with rapid weight gain.