This document provides information on medical word structure and definitions. It explains that medical terms are often composed of combining forms, prefixes, and suffixes. Some examples given are electrocardiogram, which is the record of electricity in the heart, and gastritis, which is inflammation of the stomach. The document then lists many common medical combining forms, suffixes, and prefixes and their meanings. It concludes with examples of medical terms composed using these elements.

1. Basic word structure Created by A 5 K

4. Combining form Aden/o = gland Arthr/o = joint Bi/o = life Carcin/o = cancer Cardi/o = heart Cephal/o = head Cerebro = cerebrum Cis/o = to cut Crin/o = secrete Cyst/o = urinary bladder Cyt/o = cell Derm/o, Dermat/o = skin Electr/o = electricity Encephal/o = brain Enter/o = intestine Erythr/o = red Gastr/o = stomach Gnos/o = knowledge Gynec/o = woman Hemat/o, Hem/o = blood Hepat/o = liver Iatr/o = treatment Leuk/o = white Nephr/o = kidney

5. Combining form Neur/o = nerve Onc/o = tumor Ophthalm/o = eye Oste/o = bone Path/o = disease Ped/o = child Psych/o = mind Radi/o = x-ray Ren/o = kidney Rhin/o = nose Sarc/o = flesh Sect/o = to cut Thromb/o = clot Ur/o = urinary tract

6. Suffixes -ac = pertaining to -al = pertaining to -algia = pain -cyte = cell -ectomy = excision, removal -emia = blood condition -genic = pertaining to -gram = record -ic, ical = pertaining to -ion = process -ist = specialist -itis = inflammation -logy = study of -oma = tumor, mass -opsy = process of viewing -osis = abnormal condition -pathy = disease condition -scope = instrument to visually examine -scopy = process of visually examine -sis = state of -tomy = process of cutting -y = process, condition

7. Prefixes A-, An- = no, not Auto- = self Dia = through, complete Endo- = within Epi- = above, upon Ex- = out Exo- = out Hyper- = excessive, above Hypo- = deficient, below In- = into, in Peri- = surrounding, around Pro- = before, forward Re- = back, backward Retro- = behind Sub- = below, under Trans- = across through