In response to sexual stimulation, the bulbourethral glands secrete a viscous, alkaline, mucus-like fluid. This pre-ejaculatory fluid serves two primary purposes:
The , also commonly referred to as Cowper's gland , is a vital accessory organ of the male reproductive system, primarily responsible for the lubrication and chemical neutralization of the urethra prior to ejaculation. Though relatively small in size—often compared to a pea—these paired exocrine glands play a disproportionately significant role in ensuring the survival and motility of sperm as they travel through the male and female reproductive tracts. Anatomical Structure and Location bulbourethral gland
: Because the male urethra is also used for urination, it is naturally acidic. The alkalinity of the bulbourethral secretion neutralizes these acidic urine residues, protecting sperm from damage. Contribution to Reproductive Success In response to sexual stimulation, the bulbourethral glands