The Menstrual Cycle
A Grade 9 Science worksheet covering key concepts of the human menstrual cycle, including phases, hormones, and their functions.
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The Menstrual Cycle
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which hormone is primarily responsible for the thickening of the uterine lining during the menstrual cycle?
Follicle-Stimulating Hormone (FSH)
Luteinizing Hormone (LH)
Estrogen
Progesterone
2. What event typically marks the beginning of the follicular phase?
Ovulation
Menstruation
Formation of the corpus luteum
Fertilization
3. The release of an egg from the ovary is called .
4. The hormone is responsible for maintaining the uterine lining after ovulation.
5. The menstrual cycle is controlled by hormones produced in the and the ovaries.
6. The luteal phase occurs before ovulation.
True
False
7. A typical menstrual cycle lasts exactly 28 days for all individuals.
True
False
8. Describe the primary roles of estrogen and progesterone in the menstrual cycle.
9. Explain what happens during menstruation if fertilization does not occur.