What is the term for the structure that stores sperm until ejaculation?

The term for the structure that stores sperm until ejaculation is the epididymis. It is a coiled tube located at the back of each testis where sperm mature and are stored. Sperm produced in the testis move into the epididymis, where they gain motility and the ability to fertilize an egg. This structure plays a crucial role in sperm storage, allowing them to remain viable until they are ready to be ejaculated during sexual activity.

The vas deferens is involved in transporting sperm from the epididymis to the ejaculatory duct, but it does not serve as a storage site. The scrotum is the pouch that holds the testes and helps regulate their temperature but does not store sperm itself. The seminal vesicle contributes fluid to semen but also does not store sperm.