Serosa

• Superficial wall layer furthest from


  the lumen
• Serosa composed of


  connective tissue
• Serosa helps anchor


  arteries, veins, and nerves to gastrointestinal tract wall
• Serosa referred to as serosa only


  within abdominal cavity
• Serosa referred to as adventitia for the


  mouth, pharynx, and esophagus