Question

Determine the series of hormonal events that leads to birth. 1. Oxytocin stimulates the placenta to secrete prostaglandins. 2. Fetal cortisol stimulates the placenta to secrete estrogen. 3. Prostaglandins dilate the cervix, and with oxytocin, increase the strength of uterine contractions. 4. The high estrogen level stimulates the uterus to form oxytocin receptors. 1, 3, 2, 4 2, 4, 1, 3 1, 4, 2, 3 2, 4, 3, 1

Answer 1

The series of hormonal events that leads to birth:

• Fetal cortisol stimulates the placenta to secrete estrogen.
• The high estrogen level stimulates the uterus to form oxytocin receptors.
• Prostaglandins dilate the cervix, and with oxytocin, increase the strength of uterine contractions.
• Oxytocin stimulates the placenta to secrete prostaglandins.

What hormones are involved during parturition?

The female hormones contains in parturition include:

• Estrogen: This plays a main role in uterine contractions.
• Oxytocin: It helps in the uterine contractions during parturition.
• Relaxin

Thus,  the series of hormonal events that leads to birth is 2,4,3,1.

To learn more about oxytocin receptors click here:

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