Respuesta :
In the premenstrual phase of the menstrual cycle, spiral arteries rhythmically constrict and dilate causing endometrial ischemia.
What is menstrual cycle?
A woman's body undergoes a variety of changes each month in the years leading up to menopause in order to prepare for a potential pregnancy. The menstrual cycle is the name given to this string of hormonally induced events.
An egg develops and is discharged from the ovaries once per menstrual cycle. The uterus' lining thickens throughout time. The uterine lining sheds during a menstrual cycle if there is no pregnancy. Then the cycle resumes.
The four stages of a woman's menstrual cycle are as follows:
- menstrual phase
- follicular phase
- ovulation phase
- luteal phase
Each phase's duration can vary from woman to woman and over the course of time.
To learn more about menstrual cycle with the help of given link:
https://brainly.com/question/1483249
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