Question

Estrogen, one of the hormones regulating cyclic activities in the female reproductive system, is responsible for which effect?

1) Increases the quantity and pH of cervical mucus, causing it to become thin and watery and can be stretched to a distance of 10-13 cm.
2) Inhibits the production of LH
3) Increases endometrial tortuosity
4) All of the above

Answer 1

Estrogen is responsible for a number of effects in the female reproductive system, including making cervical mucus thin and watery, the feedback regulation of LH production, and increasing endometrial tortuosity. Therefore, the answer is all of the options provided.

Step-by-step explanation:

Estrogen, one of the key hormones in the female reproductive system, has several roles in regulating cyclic activities. These roles include influencing the consistency and pH of cervical mucus, affecting the production of other hormones, and changing the characteristics of the endometrium. Regarding the specific options presented:

• Estrogen does indeed increase the quantity and pH of cervical mucus, making it thin and watery, which facilitates sperm movement and increases the chances of fertilization.
• While estrogen upregulates the production of LH leading to ovulation; high levels of estradiol can feedback inhibit the release of LH.
• Furthermore, estrogen is also involved in increasing endometrial thickness and promoting the tortuosity of endometrial glands, preparing the uterus for potential implantation.

Hence, the answer is 4) All of the above, as estrogen is responsible for each of these effects on the reproductive system.