a. | Interstitial spaces of testis contain Leydig cells and other immunologically competent cells. |
b. | Testes are situated inside the abdominal cavity within a pouch called scrotum. |
c. | The scrotum helps in maintaining the low temperature necessary for spermatogenesis. |
d. | Each lobule of testis contains 250 seminiferous tubules in which sperms are produced. |