Question
4. What role does the hormone progesterone play in menstruation and pregnancy? Answer: 5. At which stage do the ovaries stop releasing ova and the female reproductive years end? A. menarche B. menstruation C. menopause D. ovulation Answer: 6. Why does the ACS no longer recommend that females perform regular breast self-examinations? Answer:
Answer
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Lyla
Master · Tutor for 5 years
Answer
4: The hormone progesterone plays a vital role in menstruation and pregnancy. In menstruation, if fertilization of the released ovum does not occur, progesterone levels drop leading to menstruation, that's the shedding of the thickened endometrium. In pregnancy, however, a continued rise in progesterone helps to maintain the endometrium, thus providing a conducive uterine environment for the growing fetus.5: C. Menopause. It is the stage when the ovaries stop releasing ova, marking an end to the reproductive years of a woman.6: The American Cancer Society (ACS) no longer recommends that females perform regular breast self-examinations because research has shown these exams do not offer a clear benefit in early detection or reduced mortality from breast cancer.
Explanation
## Step 1: Understanding hormone roles in menstruation and pregnancy. We know that the progesterone hormone prepares the uterus for a possible pregnancy by thickening the endometrium. If pregnancy does not occur, progesterone levels drop that leads to menstruation, which entails the shedding of the thickened endometrium. If pregnancy happens, the progressive increase in progesterone sustains a conducive uterine environment for the development of the fetus.## Step 2: Identifying stages of menstrual cycle related to menopause. Menopause is the stage at which the ovaries cease releasing ova thus marking an end to the reproductive years of a female. Hence option is C.## Step 3:Reasoning the change of ACS recommendation on regular breast self-examination. The American Cancer Society (ACS) revised its recommendation on breast self-examinations because extensive studies revealed that these exams do not provide a clear benefit in detecting cancer early or in reducing the death rate from breast cancer. This caused them to discourage regular self-examinations, although individual women can make personal choices about whether or not to continue these exams.### The main formula used in these steps is that explanation relies on understanding the physiological principles and hormonal regulation rather than calculations.