by How Secretory Glands Support S£xual Function.
Secretory glands support sexual function primarily by providing lubrication, maintaining sperm health, and facilitating reproductive transport. These glands are categorized into male and female accessory organs that respond to sexual arousal.
Male Accessory Glands
In males, these glands produce seminal fluid (semen), which is essential for sperm survival and transport.
Seminal Vesicles: These produce approximately 60–70% of semen volume. Their secretion is rich in fructose, providing energy for sperm motility, and prostaglandins, which help sperm move through the female reproductive tract.
Prostate Gland: It secretes an alkaline, milky fluid (about 20–30% of semen) that helps neutralize the acidic environment of the vagina, thereby protecting sperm. It also contains enzymes like PSA (Prostate Specific Antigen) that liquefy clotted semen so sperm can swim freely.
Bulbourethral (Cowper’s) Glands: During arousal, these pea-sized glands release a clear “pre-ejaculate” fluid. This fluid lubricates the urethra and the tip of the penis while neutralizing acidic urine residue to ensure a safe passage for sperm.
Female Accessory Glands
Secretory glands in females primarily focus on lubrication and antimicrobial protection during sexual activity.
Bartholin Glands: Located near the vaginal opening, these glands secrete mucus to provide vaginal and vulvar lubrication during intercourse.
Skene’s Glands (Female Prostate): These glands produce a milk-like fluid and are considered the source of female ejaculation. They provide lubrication and have antimicrobial properties to prevent infections like UTIs.
Vaginal Epithelium: While not a traditional gland, it produces a transudate (fluid) during sexual stimulation due to increased blood flow, which is the primary source of vaginal “wetness”.
Hormonal Support
All these secretory functions are regulated by the endocrine system. Testosterone is critical for maintaining the health and volume of secretions in male glands. In both sexes, oxytocin (the “love hormone”) is released during arousal and orgasm to facilitate muscle contractions and enhance the feeling of pleasure.
