sexually mature rats had testes weighing 3.7 g , produced 86 x 10 ( 6 ) spermatozoa or 24 x 10 ( 6 ) spermatozoa/g testicular parenchyma daily , and their paired epididymides contained 295 x 10 ( 6 ) spermatozoa in the head + body and 440 x 10 ( 6 ) spermatozoa in the tail .
C0037868
spermatozoa
C0037851
spermatozoa