The Anatomy and Physiology of the Oesophagus -- The Anatomy and Physiology of the Stomach -- The Anatomy and Physiology of the Small Bowel -- The Anatomy and Physiology of the Diaphragm -- The Spleen -- Benign Disease of the Oesophagus -- Benign Diseases of the Stomach -- Benign Disease of the Small Bowel -- Benign Disease of the Diaphragm -- Benign Diseases of the Spleen -- Epithelial Neoplasm…