What is the function of the vas deferens in males?

The function of the vas deferens in males is to carry sperm and semen to the ejaculatory duct. This muscular tube extends from the epididymis, where sperm mature and are stored, to the ejaculatory duct, facilitating the transportation of sperm during ejaculation. This process is essential for reproduction, as it allows sperm to be mixed with seminal fluid to form semen that can be expelled from the body.

The other choices focus on functions that are not directly related to the vas deferens. For instance, the transportation of nutrients to the testicles concerns the function of blood vessels rather than the vas deferens itself. The statement about enclosing the bladder refers to the anatomical relationship of structures within the pelvis but does not pertain to the specific action of the vas deferens. Lastly, the regulation of hormone production is primarily related to the endocrine system's functions, particularly testosterone production by the testes, and is distinct from the role of the vas deferens.