Fetal ejection reflex in human female is induced by:

The fetal ejection reflex in human females is induced by the release of the hormone oxytocin. This reflex is a natural part of the birthing process and typically occurs during the second stage of labor. Here are the steps:

1. As labor progresses, the cervix dilates, allowing the baby to move down into the birth canal. This process is facilitated by contractions of the uterus, which are triggered by the hormone oxytocin.

2. The pressure of the baby's head against the cervix and vaginal walls stimulates nerve endings in these areas.

3. These nerve endings send signals to the brain, specifically to the hypothalamus, which is responsible for regulating hormones in the body.

4. In response to these signals, the hypothalamus triggers the release of more oxytocin.

5. This increase in oxytocin intensifies uterine contractions, pushing the baby further down the birth canal.

6. The pressure of the baby against the cervix and vaginal walls continues to stimulate nerve endings, creating a positive feedback loop that leads to the release of even more oxytocin.

7. This cycle continues until the baby is expelled from the body, at which point the release of oxytocin decreases and the uterine contractions subside.

This is known as the fetal ejection reflex. It's a natural process that helps to ensure the safe delivery of the baby.