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Learn the principles of health science with an overview of prefixes, suffixes, root words, and combining vowels in medical terminology. Understand common prefixes, suffixes, and root words with examples.
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Med Terms Principles of Health Science
Prefixes– usually indicate location, time, or number and come at the beginning of a word Suffixes– usually indicate the procedure, disease, or condition and come after the root word Root Words – usually indicate the part of the body involved
Combining Vowel 1. usually “o” 2. attached to the root word 3. makes medical terms easier to pronounce 4. is NOT used a when suffix begins with a vowel 5. IS used when suffix begins with a consonant
Prefix + Root Word + Suffix = Medical Term • Poly + neur/o + itis = POLYNEURITIS • many + nerves + inflammation = inflammation of many nerves
Common Medical Prefixes • a-, an- negative, without • ab- away from • ad- towards • anti- against • ante- before
bi- two, both • brachy- short • brady- slow • dys- painful, difficult • dors- back
endo- inside • epi- above, upon • hemi- half • hyper- excessive, above, more than • hypo- decrease, below, less
inter- between, among • intra- within, inside • macro- large, big • micro- small • mal- bad
neo- new • para- beside or below • peri- around • poly- many
post- after • sub- below • super- above • supra- above • tachy- fast
dextr/o- right side • sinistr/o- left side • olig/o- few or scanty • eu- good, normal, well or easy
Common Medical Suffixes • -algia- painful • -asthenia –weakness • -cele –hernia • -centesis -surgical puncture • -ectomy -removal
-itis -inflammation/infection • -gram –picture • -malacia -abnormal softening • -megaly- enlargement • -necrosis -death of tissue • -plegia -paralysis
-ology -study of • -ostomy -surgical opening • -otomy -surgical incision • -rrhea- flow
-pathy –disease • -plasty -surgical repair • -rrhaphy –suture • -sclerosis -abnormal hardening • -scope -instrument to view
-rrhage -abnormal bleeding • -rrhexis -rupture • -graphy –process of recording • stenosis -narrowing
-al -pertaining to • -ous -pertaining to • -ical -pertaining to • -ac -pertaining to • -ic - pertaining to
-iasis -abnormal condition • -esis -abnormal condition • -ago - abnormal condition • -osis -abnormal condition
Common Medical Root Words • acro –extremities • angi/o –vessel • arthr/o- joint • cardi/o –heart • cerebr/o –brain • chrondr/o- cartilage
cyte-cell • gastr/o- stomach • hepat- liver • lapar -abdomen • latero- side • mamm/o- breast
medial- middle • my/o –muscle • cost/o –ribs • nephr/o -kidney • oophor –ovary • ot/o -ear
pneum/o -lung/air • rhino -nose • tend/o -tendon • trachi-trachea (wind pipe) • thorac-chest
salpingo-fallopian tube • procto-rectum • oste/o -bone • neur/o -nerve • nas/o -nose
myel/o -spinal cord/bone marrow • mast/o –breast • lip/o- fat • laryng -throat • hyster/o -uterus
hemo/hemat- blood • enter/o -small intestines • cyst/o -sac/bladder • col/o -large intestines/colon • cervi/c -neck
carp -wrist • brachi -arm • arteri/o -artery • aden -gland
tonsill - tonsils • lith – stone • appendic- appendix • myc/o- fungus
pyel/o- renal pelvis (part of kidney) • py/o – pus • pyr/o- fever
cyan/o -blue • eryth/o –red • leuk/o - white • melan/o – black • poli/o - gray