The elastic tissue connecting the cauda epididymis to the scrotal sac is

$A$: Occasionally,mammary glands are functional in males,and the condition is called gynaecomastia.
$R$: Decreased testosterone in later life may also lead to gynaecomastia. It is usually due to the perturbation of the estrogen-to-androgen ratio.

State the location and function of Leydig cells.

If for some reason,the $vasa$ $efferentia$ in the human reproductive system get blocked,the gametes will not be transported from:

During early and middle fetal life,the testes are located in the:

The primary sex organ in man is: