the administration of another drug , bis ( dichloroacetyl ) diamine ( win 18446 ) for 21 consecutive days induced a depletion of primary spermatocytes in the seminiferous tubules , which was followed by a depletion of spermatids , due to the lack of spermatocytes to generat them .
C0036630
seminiferous tubules
C0037863
spermatocytes