What is the main role of the bulbourethral gland in the male reproductive system?

The bulbourethral gland plays a crucial role in the male reproductive system by producing a clear, viscous fluid that contributes to semen. This fluid is released during the process of ejaculation and serves to lubricate the urethra, creating a more hospitable environment for sperm as they travel through the urethra during ejaculation. It also helps neutralize any acidity in the urethra that could harm the sperm. This production of pre-ejaculatory fluid is essential for effective reproduction, making the contribution of the bulbourethral gland particularly significant in the overall process of semen formation and function.

While other glands, such as the testes, are responsible for producing testosterone, the primary function of the bulbourethral gland is specifically related to semen production rather than hormone regulation or ovulation stimulation.