What is the common duct shared by the reproductive and excretory systems in the human male?

Males have a number of internal accessory organs. Which one$(s)$ is/are responsible for secreting fluid containing fructose and prostaglandins?

Write a note on the transport and formation of sperms.

What is the location of $Leydig$ cells in humans?

Cells of Leydig are found in

If the number of somatic chromosomes is $40$,what will be the number of chromosomes in the seminiferous tubule?