The Leydig cells found in the human body are the source of ...

Assertion $(A) :-$ Sperm production occurs in the seminiferous tubules.
Reason $(R) :-$ The seminiferous tubules are lined on their inside by spermatogonia and Sertoli cells.

Which of the following represents the correct pathway of sperm transport?

$A$: Leydig cells synthesize and secrete testicular hormones called androgens.
$R$: Leydig cells are located between the Sertoli cells.

Where does the vas deferens originate from?

What is the significance of the epididymis in male fertility?