Final answer:
A hypophysectomy impacts sexual function by removing the source of LH and FSH, which are required for testosterone production and spermatogenesis. Exogenous hormones will be necessary to restore erectile function and libido, but fertility may still be affected.
Step-by-step explanation:
A hypophysectomy, the surgical removal of the pituitary gland, can have significant impacts on a male individual's sexual function. The pituitary gland produces several hormones, including luteinizing hormone (LH) and follicle-stimulating hormone (FSH), which are critical for reproductive function. LH primarily stimulates the Leydig cells in the testes to produce testosterone, which is crucial for maintaining libido, erectile function, and the development of secondary sexual characteristics. FSH works with LH to facilitate spermatogenesis by stimulating the Sertoli cells within the seminiferous tubules of the testes.
Therefore, when discussing how a hypophysectomy may affect a male client's sexual function, it is most accurate to state that exogenous hormones will be required to restore erectile function and maintain libido. Without the pituitary gland to secrete LH and FSH, testosterone levels and spermatogenesis would likely decrease, which can impair sexual and reproductive functions. To address this, exogenous hormones would need to be supplied to mimic the function of the missing pituitary hormones, thereby potentially restoring erectile function and libido, though fertility (spermatogenesis) might still be compromised. Hence, the correct answer to the question is option D: Exogenous hormones will be needed to restore erectile function after the adenoma is removed.