Before you start learning specific Medical Terms for various systems of the body, you need to know word roots that identify major organs in human body.
| Stomato | = mouth | stomatitis |
| Dento | = teeth | dentist |
| Glosso/linguo | = tongue | glossitis, lingual nerve |
| Gingivo | = gums | gingivitis |
| Encephalo | = brain | encephalitis |
| Gastro | = stomach | gastritis |
| Entero | = intestine | gastroenteritis |
| Colo | = large intestine | colitis, megacolon |
| Procto | = anus/rectum | proctitis, proctologist |
| Hepato | = liver | hepatitis, hepatomegaly |
| Nephro/rene | = kidney | nephrosis, renal artery |
| Orchido | = testis | orchiditis, orchidectomy |
| Oophoro | = ovary | oophorectomy |
| Hystero/metro | =uterus | hysterectomy, endometritis |
| Salpingo | = uterine tubes | hysterosalpingogram |
| Dermo | = skin | dermatitis |
| Masto/mammo | = breast | mammography, mastectomy |
| Osteo | = bones | osteoporosis |
| Cardio | = heart | electrocardiogram (ECG) |
| Cysto | = bladder | cystitis |
| Rhino | = nose | rhinitis (runny nose!) |
| Phlebo/veno | = veins | phlebitis, phlebotomy |
| Pneumo/pulmo | = lung | pneumonitis, pulmonologist |
| Hemo/emia | = blood | hematologist, anemia |
Note that some organs have more than one word root. Example: “masto” and “mammo”. Typically, one is derived from the Greek and one from Latin. Go figure! But, you need to know both roots because you may see either of them used. The word ending “-itis” is going to be used repeatedly. It means inflammation, and I want to make sure you know what that means. An infected cut is an inflammation. “Pink eye” is an inflammation. But, four things must be present to define inflammation: pain, redness, heat and swelling (dolor, rubor, calor and tumor in Latin!). But, inflammation of an internal organ such as the stomach or kidney must be defined by a physician relying on signs and symptoms, and, possibly, the need for a biopsy (tissue sample) to examine under a microscope by a specialist in identifying the causes of diseased tissues, a pathologist.
