The prostate gland is indirectly connected to the vas deferens. The vas deferens is the tube that connects the testes to the seminal vesicles, and its main function is to transport sperm, which can carry the sperm produced by the testes to the seminal vesicles to be stored, and then excrete the semen when orgasm occurs. The prostate gland is a male-specific gonad. As an exocrine gland, the prostate gland can secrete about 2 ml of prostatic fluid per day, which serves as the main component of semen, and together they are expelled during ejaculation. The male vas deferens tract starts from the output tubules of the testes, passes through the epididymal ducts, vas deferens, seminal vesicles, ejaculatory ducts, and finally enters the prostate section and the urethra. The vas deferens opens into the spermatheca, which is located at the tip of the prostate gland and mixes at the bulb of the urethra, so the prostate gland is indirectly connected to the vas deferens.