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

Which of the following is the endocrine tissue of the testes?

In the mammalian reproductive system,testicular degeneration and other diseases occur due to the deficiency of .......

Seminal plasma of humans is rich in

There is a connective tissue cord extending between the testis and the abdominal wall called:

$A$: 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.