| organs of the digestive system(expression, system, organism, organ) |
| circulatory system(expression, idiom, name, body, system) |
| digestive system(expression, idiom, name, body, system) |
| endocrine system(expression, idiom, name, body, system) |
| muscular system(expression, idiom, name, body, system) |
| nervous system(expression, idiom, name, body, system) |
| reproductive system(expression, idiom, name, body, system) |
| respiratory system(expression, idiom, name, body, system) |
| skeletal system(expression, idiom, name, body, system) |
| urinary system(expression, idiom, name, body, system) |
| system organ class(expression, medicine, biology, system, organism) |
| multi-organ system failure(expression, system, organism, organ) |
| alimentary system(expression, name, system, organism) |
| basal systems of organs(expression, medicine, biology, system) |
| cardiovascular system(expression, name, system, organism) |
| class of organ systems(expression, medicine, biology, system) |
| hemolymphoid system(expression, name, system, organism) |
| integumental system(expression, name, system, organism) |
| integumentary system(expression, idiom, body, system, organism) |
| isolated organ bath system(expression, medicine, biology, system) |