What is the name of the spermatic duct of the testicles?

The spermatic duct of the testicles is known as the vasa deferentia. This duct plays a crucial role in the male reproductive system as it transports sperm from the epididymis, where sperm matures, to the ejaculatory duct. The vasa deferentia are muscular tubes that can also propel sperm during ejaculation through peristaltic contractions.

The epididymis, while closely related to the spermatic duct, is not a duct itself but rather a coiled structure where sperm storage and maturation take place. The seminal vesicle is a gland that contributes seminal fluid to the sperm, but it does not function as a duct. The urethra, on the other hand, is a passage that exits the body and serves to conduct both urine and semen, but it does not serve as the primary duct for transporting sperm from the testicles.

Understanding the specific roles of these structures is vital for comprehending male reproductive anatomy and physiology.