What is the main role of FSH in females?

Correct Answer: C

Rationale: The correct answer is C: Stimulate follicle growth. FSH (Follicle-Stimulating Hormone) in females plays a key role in stimulating the growth and maturation of ovarian follicles. This hormone helps in the development of follicles containing the eggs within the ovaries. The other choices are incorrect because A: Stimulate ovulation is primarily regulated by LH (Luteinizing Hormone), B: Maintain pregnancy is mainly controlled by progesterone and hCG (human Chorionic Gonadotropin), D: Trigger luteinization is also regulated by LH. Therefore, the main role of FSH in females is to stimulate follicle growth.

Correct Answer: B

Rationale: The correct answer is B: Luteal phase. Following ovulation, the ruptured follicle transforms into the corpus luteum, which secretes progesterone to prepare the uterine lining for potential implantation. This phase typically lasts around 14 days. The other choices are incorrect because: A: Menstrual phase occurs at the beginning of the cycle with shedding of the uterine lining. C: Proliferative phase occurs before ovulation, characterized by the thickening of the uterine lining. D: Follicular phase occurs before ovulation, characterized by the development of ovarian follicles.

Correct Answer: A

Rationale: The correct answer is A: Transport eggs from the ovaries to the uterus. The fallopian tubes serve as the pathway for the egg released by the ovary to travel towards the uterus for potential fertilization. This transportation process is essential for successful conception. Choices B, C, and D are incorrect because the fallopian tubes do not produce eggs, support implantation, or secrete estrogen. Eggs are produced in the ovaries, implantation occurs in the uterus, and estrogen is primarily produced by the ovaries and other endocrine glands.

Correct Answer: A

Rationale: The correct order of the stages of labor is Dilation, Expulsion, Placental (Choice A). Firstly, dilation refers to the opening of the cervix to allow the baby to pass through. Secondly, expulsion is when the baby is delivered. Lastly, the placental stage involves the delivery of the placenta after the baby is born. This sequence is crucial for a safe delivery and recovery. Choices B, C, and D are incorrect because they do not follow the natural progression of labor stages and may lead to complications if followed.

Correct Answer: A

Rationale: Morning sickness is a common sign of pregnancy caused by hormonal changes. It typically occurs in the first trimester. The other choices are not signs of pregnancy. Luteal phase defect is a menstrual cycle disorder, mature corpus luteum is a normal part of the menstrual cycle, and dysmenorrhea is painful periods. Thus, A is the correct answer as it directly relates to pregnancy.