Sperm sac may refer to:
Spermatophore, a mass of spermatozoa, a sperm sac passed between reproductive partners. Spermatheca, an organ in females that stores sperm for later use, the sperm sac. Milt, sperm sacs, large sacs containing large amounts of matured sperm. Epididymis, a part of the extended testes region that stores sperm, the sperm sac. Spermatocele, a deformation of the epididymis, as sacs of fluid and sperm, sperm sacs. Seminal vesicle, a gland for seminal fluid, also called the sperm sac. sperm sac, a blind-end pouch of the seminal vesicle. Testes, testicles; glands that produce sperm, sperm sacs. Scrotum, a sac which holds the testes.
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