The Menstrual Cycle

Question 1

What is the range of time of the menstrual cycle in human women?

Answer 1

• 21 to 35 days
• 28 days on average

Question 2

What cycles make up the menstrual cycle?

Answer 2

• the ovarian cycle
• the uterine cycle

Question 3

What are the uterine and ovarian cycles controlled by?

Answer 3

• by the endocrine system

Question 4

When do the uterine and ovarian cycles occur?

Answer 4

• from puberty until menopause