The First Day of the Menstrual Cycle Is Marked by ____.​

question 31

Multiple Choice

The first day of the menstrual cycle is marked by ____.​

• A) ​the beginning of ovulation
• B) ​the onset of PMS
• C) ​the beginning of menstruation
• D) ​an increase in the thickness of the uterine lining
• E) the beginning of the luteal phase​

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Definitions:

Placenta

The placenta is an organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the fetus and removing waste products.

Expulsion

The act of forcing or pushing something out or away.

Intrauterine Device

A small contraceptive device typically made of plastic and copper that is inserted into the uterus to prevent pregnancy.

Effectiveness Rate

A measure of the success of a treatment, medication, or intervention in achieving its intended result under typical everyday conditions.