====== VAS DEFERENS ======

    * Scrotal part
    * Funicular part
    * Inguinal part
    * Pelvic part
    * Ampulla of ductus deferens
      * Diverticula of ampulla
    * Adventitia
    * Muscular layer; muscular coat
    * Mucosa; mucous membrane

  * synonyms 
    * ductus deferens , vas deferens , deferent duct 
  * definition 
    * thickwalled muscular tube transmits spermatozoa from epididymis to ejaculatory duct
  * length 
    * 45cm 
  * arterial supply 
  * nerve supply 
  * histology 
  * location 
    * inside scrotum 
      * begins as 
        * continuation of tail of epididymis 
           * posterior border of testis 
             * tortuous 
             * gradually straighten 
             * ascends medial to epididymis
    * inside inguinal canal 
      * spermatic cord 
        * lies vertically in posterior part 
          *  runs upwards to superficial inguinal ring 
    * in greater pelvis 
      * at deep inguinal ring 
        * leaves spermatic cord  
          * hooks round lateral side of inferior epigastric artery 
            * passes backwards and medially 
            * across external iliac vessels 
            * enters in 
    * in lesser pelvis 

{{:histology:vas_deferens.jpg}}