Figure 1.

Effect of Malathion, Tribulus terrestris, and T. terrestris + Malathion on seminiferous tubules (magnification ×400). Normal seminiferous tubule structure was observed in the sham group (A), T. terrestris group (10 mg/kg) (F), T. terrestris + Malathion group (5 mg/kg) (D), and T. terrestris + Malathion group (10 mg/kg) (E). A decrease in height of germinal layer in seminiferous tubules, destruction of the cells sequence, vacuolization, and reduce sperm cells density were observed in the Malathion group (B and C). The black arrow identifies the height of the germinal layer, the red arrow identifies sperm cells density, the green arrow identifies irregularities in the structure of the margin of tubules (destruction of the membrane seminiferous tubules structure), and the blue arrow identifies vacuolization