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which  looks  like  a  very  long,  strongly  convoluted  tube.  Mature  spermatozoa
                  accumulate  in  the  appendage  of  the  testicle.  They  also  accumulate  in  the  seminal
                  vesicles.
                         Spermatozoa are pushed out by contraction of smooth muscles from the testis
                  into the vas deferens, and then mixed with substances produced by the prostate, seminal
                  vesicles and bulbourethral glands, forming sperm, or seminal fluid.
                         Seminal fluid, in addition to spermatozoa, contains nutrients necessary for their
                  nutrition. Also other components.
















                                                             Figure 30.






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