The accessory glands are prostate and seminal vesicle, whereas the epididymis is an organ located on the posterior border of the testes where the sperm mature and are stored. The epididymis has secretory capacity and is often referred to as an accessory gland.Click to see full answer. Also, what are accessory glands?Accessory Glands. The accessory glands of the male reproductive system are the seminal vesicles, prostate gland, and the bulbourethral glands. These glands secrete fluids that enter the urethra.Furthermore, what are the female accessory glands? The female accessory glands include the tubular poison gland, the paired, lemon-shaped uterus glands, and Dufour’s gland, an unbranched tubular organ. They consist essentially of a single layer of epithelium cells surrounded by a basement membrane. The lumen is lined by cuticle. Beside this, how many accessory glands are there in the male reproductive system? three accessory glands What is the function of male accessory glands?Male accessory gland. Male accessory glands (MAG) in humans are the seminal vesicles, prostate gland, and the bulbourethral glands (also called Cowper’s glands). In insects, male accessory glands produce products that mix with the sperm to protect and preserve them, including seminal fluid proteins.