The bulbourethral glands lie beneath which structure and empty their contents into the urethra?

The bulbourethral glands, also known as Cowper's glands, are located beneath the prostate gland. Their primary function is to produce a pre-ejaculatory fluid that helps to lubricate the urethra and neutralize any acidic urine residue in the urethra before ejaculation occurs. By emptying their contents into the urethra, these glands play a significant role in facilitating the passage of sperm during ejaculation.

The relationship between the bulbourethral glands and the prostate is anatomically significant, as the prostate gland surrounds the urethra and is involved in producing a significant portion of seminal fluid. Therefore, the correct answer highlights the anatomical positioning and functional relationship between these two structures in the male reproductive system.