Where are sperm stored before ejaculation?

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Front view anatomical diagrams of the male and female reproductive systems, with labeled organs including penis, testis, prostate gland, uterus, ovary, and vagina. — human reproductive system Organs and structures of the male and female reproductive systems.

Sperm cells are produced in the testes and are subsequently transported to the epididymis, where they undergo maturation and are stored until ejaculation.12

Within the epididymis, which consists of a head, body, and tail, sperm are primarily stored in the tail region. During the emission phase of ejaculation, muscular contractions propel the stored sperm from the epididymis into the ductus deferens and toward the urethra to be expelled from the body.13