Biology 30 Diploma Practice Test 2026 – Complete Exam Prep

Cowper's gland, also known as the bulbourethral gland, plays a significant role in the male reproductive system, especially during ejaculation. Its primary function is to secrete a pre-ejaculatory fluid that serves to neutralize acidity in the urethra, which can be caused by residual urine. This neutralization is important because sperm are sensitive to acidic conditions, and ensuring a more hospitable environment helps to protect and facilitate the passage of sperm during ejaculation.

While some other glands contribute to the composition of semen and the overall reproductive process, the specific function of Cowper's gland focuses on this initial preparation and cleaning of the urethra. This protective role enhances the chances of sperm survival once they are released into the female reproductive tract.