In vasectomy, a small part of which of the following is cut for sterilization?

Failure of the descending testis into the scrotum is known as:

Which fluid is not present in semen?

The region outside the seminiferous tubules which contains small blood vessels,Leydig cells,and other immunologically competent cells is called $:-$

$ICSH$ acts on

Explain the structure of the penis.