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mestny [16]
3 years ago
5

The onset of menstruation is triggered by __________.

Health
1 answer:
makvit [3.9K]3 years ago
8 0

Answer:

Each month, menstruation is triggered by a drop in estrogen and progesterone levels, as well as the production of prostaglandins, which constrict the spiral arteries. They spasm, contract, and break apart as a result of this.

Explanation:

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