Understanding the Menstrual Cycle

What is the first sign of puberty in girls related to the menstrual cycle?

• Growth of body hair

• Commencement of monthly blood discharge

• Increase in height

• Development of breasts

What is the term for the mature follicle that releases an egg during ovulation?

• Primary follicle

• Corpus luteum

• Graafian follicle

• Endometrium

During which days of the menstrual cycle does the endometrium break down and flow out of the body?

• Day 18 to 28

• Day 11 to 17

• Day 6 to 13

• Day 1 to 5

Which hormone is primarily responsible for maintaining the thickness of the endometrium after ovulation?

• Luteinizing hormone

• Testosterone

• Progesterone

• Estrogen

What is the likelihood of fertilization during the infertile phase of the menstrual cycle?

• Very high

• Moderate

• Low

• Unlikely