#vasa_efferentia  the several highly convoluted tubules that lead from the rete testis to the vas deferens and form the head of the epididymis
  supertype:  tubule  a small tube
  part of:  epididymis  a convoluted tubule in each testis; carries sperm to vas deferens
     part of:  testis__testicle__orchis__ball__ballock__bollock__nut  one of the two male reproductive glands that produce spermatozoa and secrete androgens; "she kicked him in the balls and got away"
        part of:  male_reproductive_system  the reproductive system of males
           part of:  male_body  the body of a male human being
              part of:  male_person__male  a person who belongs to the sex that cannot have babies
        part of:  male_genitalia__male_genitals__male_genital_organ__family_jewels  external male sex organs
           part of:  male_body  the body of a male human being
           part of:  male_reproductive_system  the reproductive system of males
     part of:  seminal_duct__seminalduct  the efferent duct of the testis in man
        part of:  scrotum  the external pouch that contains the testes
           part of:  male_genitalia__male_genitals__male_genital_organ__family_jewels  external male sex organs

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