Physical examinition and laboratory investigation, sedation, general anesthsia and local anesthesia, fluid and electrolyte and blood transfusion, pre-and post- operative management, intraoperative care, surgical sepsis and its prevention, heamorrhage and shock, pathophysiology of wound healing. pathophysiology of bone healing and bone graft, surgical technique and technology, surgical anatomy, applied physiology and pathology for surgery of head and neck, head injuries including facial trauma, management of unconscious patient respiratory and circulatory system, respiratory failure, heamatopoietic and lymphoreticular system.