Answer the following question given this paragraph: 

The seminiferous tubules within each testis join to form the epididymis. The epididymis (plural, epididymes) is a coiled tube about 6 meters (20 feet) long lying atop the testis inside the scrotum. The functions of the epididymis are to mature and store mature sperm until they leave the body.


Q: What joins within each testis to form the epididymis?


A:
seminiferous tubules