Figure 4. Electron micrograph of exosomes in the seminiferous tubules of control group. Seminiferous tubules containing formation of early endosomes and MVBs within the cytoplasmic of Sertoli cells. Apical blebs formation connected with plasma membrane of Sertoli cell. Sc: Sertoli cell; Ee: early endosome; MVBs: multivesicular bodies; M: mitochondria; ab: apical blebs; (arrow head) exosome. Scale bars 1 μm.