Which organ in the male reproductive system stores sperm?

The epididymis is the organ in the male reproductive system that plays a crucial role in the storage and maturation of sperm. This coiled tube, located at the back of each testis, receives sperm from the testes and allows them to mature over a period of days to weeks. During this time, sperm gain the ability to swim and fertilize an egg.

The vas deferens is involved in transporting sperm from the epididymis to the ejaculatory duct but does not serve as a storage site. The prostate produces seminal fluid and helps nourish sperm but does not store them. The seminal vesicles contribute to seminal fluid as well, providing a significant portion of the volume of semen, but they also do not store sperm.