====== DEVELOPMENT OF DIGESTIVE SYSTEM ======



  * Primitive tubular gut 
    * buccopharyngeal membrane ( cephalic end )
      * primitive mouth cavity or stomodaeum
    * [[:en:foregut | Foregut  ]]
    * Anterior intestinal portal
      * termination of bile duct in second part of duodenum
    * [[:en:midgut| Midgut ]]
    * posterior intestinal portal
    * [[:en:hindgut | Hindgut ]] 
    * cloacal membrane (caudal end)