Biology - The Menstrual Cycle

Menstrual Cycle

The monthly release of an egg from a woman’s ovaries, and the build up and breakdown of the protective lining in the womb, is called the menstrual cycle.

During the menstrual cycle, hormone levels change.

The Menstrual Cycle has 4 stages:

1.       Day 1 is when the bleeding starts – the uterus lining breaks down for around 4 days.

2.       The lining of the womb builds up again,…