Which one of the following is the most likely root cause why menstrua...
Explanation:
Maintaining a high concentration of sex hormones in the bloodstream is the most likely root cause why menstruation is not taking place in regularly cycling human females. Here's why:
Role of Sex Hormones:
- Sex hormones, such as estrogen and progesterone, play a crucial role in regulating the menstrual cycle.
- Estrogen is responsible for the growth of the endometrial lining in preparation for a potential pregnancy.
- Progesterone helps maintain the endometrial lining and supports a pregnancy if fertilization occurs.
Impact on Menstruation:
- If there is a hormonal imbalance or a decrease in the concentration of sex hormones in the bloodstream, it can disrupt the normal menstrual cycle.
- Low levels of estrogen or progesterone can lead to irregular or missed periods.
- Hormonal disorders such as polycystic ovary syndrome (PCOS) or thyroid dysfunction can also affect hormone levels and menstruation.
Effects on Menstrual Cycle:
- Without the proper levels of sex hormones, the endometrial lining may not develop properly or may not be maintained, leading to a lack of menstruation.
- Hormonal imbalances can also affect ovulation, further disrupting the menstrual cycle.
Conclusion:
Maintaining a high concentration of sex hormones in the bloodstream is essential for the normal functioning of the menstrual cycle in regularly cycling human females. Any disruption in hormone levels can impact menstruation and may require medical attention to restore hormonal balance.
Which one of the following is the most likely root cause why menstrua...
High concentration of sex steroids (estrogen) exerts negative feedback on anterior pituitary, decreasing LH secretion and release thus, lowering LH level in blood. Due to insufficient LH level no ovulation occurs which causes irregular menstruation.
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