Question

The diagrams represent different phases of the menstrual cycle. Arrange these diagrams of the female reproductive system in the correct order in which the menstrual cycle progresses, starting with day 1 of the menstrual cycle.

Answer 1

Answer:

the menstrual cycle

Explanation:

Answer 2

Answer:

The different phases of menstrual cycle are as follows:

• Menstruation
• Follicular Phase
• Ovulation
• Luteal Phase

Explanation:

Menstrual Cycle

The menstrual cycle is a series of natural changes in the production of hormones and the structure of the uterus and ovaries in the female reproductive system that make pregnancy possible. The ovarian cycle regulates the production and release of eggs and the cyclical release of estrogen and progesterone.

The different phases of menstrual cycle are as follows:

• Menstruation: The menstrual phase is the first phase of the menstrual cycle. This is also when you get your period.
• This phase begins when an egg from the previous cycle is not fertilized. Since pregnancy has not occurred, the levels of the hormones estrogen and progesterone decrease.
• Follicular Phase: The follicular phase begins on the first day of menstruation (so overlaps with menstruation) and ends with ovulation. It begins when the hypothalamus signals the pituitary gland to release follicle-stimulating hormone (FSH). This hormone stimulates your ovaries to produce about 5 to 20 small sacs called follicles. Each follicle contains an immature egg.
• Ovulation: An increase in estrogen levels during the follicular phase triggers the pituitary gland to release luteinizing hormone (LH). This is where the process of ovulation begins. Ovulation is when a mature egg is released from your ovary. The egg travels down the fallopian tubes to the uterus to be fertilized by the sperm.
• Luteal Phase: When the follicle releases an egg, it turns yellow. This structure releases hormones, mainly progesterone and some estrogen. The increase in hormone levels keeps your endometrium thick and ready for a fertilized egg to implant. When you become pregnant, your body produces human chorionic gonadotropin (hCG). It is detected by hormonal pregnancy tests. It helps preserve the luteum and keeps the endometrium thick.

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