Which of the following is NOT regulated by follicle-stimulating hormone and luteinizing hormone?

• A. Growth
• B. Prepubertal maturation
• C. Parity
• D. The reproductive cycle

Answer: (C)

The correct answer, which indicates that parity is not regulated by follicle-stimulating hormone (FSH) and luteinizing hormone (LH), reflects an understanding of the roles these hormones play in the reproductive system. FSH and LH are crucial for regulating the menstrual cycle, stimulating the growth and maturation of ovarian follicles, and promoting the production of estrogen and progesterone, which are pivotal for ovulation and preparation of the uterine lining for a potential pregnancy.

Parity refers to the number of times a woman has given birth. This concept is more closely related to reproductive outcomes rather than the hormonal regulation of reproductive processes. While FSH and LH are integral to the functions that lead up to pregnancy, they do not regulate parity itself, which is essentially a reflection of reproductive history.

In contrast, the other options—growth, prepubertal maturation, and the reproductive cycle—are indeed influenced by the actions of FSH and LH. These hormones play significant roles in sexual maturation and the cyclic changes that occur in the ovaries and endometrium during the menstrual cycle. Understanding the distinction between hormonal regulation and reproductive history is key in reproductive health and pathophysiology.