What are the components of the male reproductive system?

Epididymis ,Vas deference ,Seminal vesicle,Prostate ,Penis

What is the relationship between the various endocrine components of the male reproductive system?

What compounds mediate communication within the male reproductive system? Where and how are male-associated hormones produced?

How is communication mediated within the male reproductive system?

How are germ cells produced and what factors control their production?

What are the unique chromosomal events leading to the formation of a haploid male germ cell?

What does the epididymis do and how does it do it?

What is the prostate and what is its function?

What is semen?
How does semen analysis assist in understanding the reproductive status of the male?

How is semen evaluated?

What is sperm banking? When and how is it (or should it be) used in humans?
Animals?