Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Root Words

Medical Terminology Root Words

abdomin/o abdomen
aden/o gland
adenoid/o adenoids
adren/o adrenal glands
alveol/o alveolus (air sac within the lung)
amni/o amnion (sac surrounding embryo)
angi/o vessel (blood)
append/o, appendic/o appendix
arteri/o artery
arteriol/o small artery
arthr/o joint
ather/o fatty plaque
axill/o armpit
balan/o penis
bari/o weight
bi/o life
blephar/o eyelid
bronch/o bronchial tube
bronchiol/o small bronchial tubes
calcane/o calcaneus (heel bone)
capillar/o capillary
carcin/o cancer, cancerous
cardi/o heart
carp/o wrist bones (carpal)
cephal/o head
cerebell/o cerebellum (posterior part of the brain)
cerebr/o cerebrum (largest part of the brain)
cervic/o neck
chem/o drug, chemical
cholecyst/o gallbladder
choledoch/o common bile duct
chondr/o cartilage
chron/o time
cis/o to cut
clavicul/o clavicle (collarbone)
coccyg/o tailbone
col/o colon (large intestine)
colon/o colon (large intestine)
colp/o vagina
comi/o to care for
coni/o dust
coron/o heart
cost/o rib
crani/o skull
crin/o secrete
cry/o cold
cutane/o skin
cyan/o blue
cyst/o urinary bladder
cyt/o cell
dactly/o fingers or toes
dent/i tooth
dermat/o, derm/o skin
duoden/o duodenum
dur/o dura mater (outermost meningeal layer)
electr/o electricity
encephal/o brain
endocrin/o endocrine glands
endometr/o, endometri/o endometrium (inner lining of the uterus)
enter/o intestines (small intestines)
epiglott/o epiglottis
epitheli/o skin (surface tissue)
erythr/o red
esophag/o esophagus
esthesi/o sensation
femor/o femur, thigh bone
fibr/o fibrous tissue
fibul/o fibula (smaller lower leg bone)
gastr/o stomach
gen/o to produce
ger/o old age
glyc/o sugar
gnos/o knowledge
gynec/o woman, female
hemat/o, hem/o blood
hepat/o liver
humer/o humerus (upper arm bone)
hydr/o water
hypophys/o pituitary gland
hyster/o uterus
iatr/o treatment
ile/o ileum (third part of small intestine)
ili/o ilium (upper part of hip bone)
inguin/o groin
isch/o to hold back
jejun/o jejunum
lapar/o abdomen
laryng/o larynx (voice box)
later/o side
ligament/o ligament
leiomy/o smooth muscle
leuk/o white
lip/o fat
lith/o stone
lumb/o loin, waist region
lymph/o lymph
lymphaden/o lymph nodes
lymphangi/o lymph vessel
lys/o breakdown, destruction, separation
mamm/o breast
mast/o breast
mediastin/o mediastinum
medull/o medulla oblongata (lower part of the brain)
men/o menstruation
mening/o meninges (membranes covering brain and spinal cord)
metacarp/o metacarpals (hand bones)
metatars/o metatarsals (foot bones)
metr/o, metri/o uterus; to measure
muscul/o muscle
my/o muscle
myel/o bone marrow (with -blast, -cyte, -genous, -oma)
myel/o spinal cord (with -cele, -gram, -itis)
myos/o muscle
myring/o eardrum
nas/o nose
nat/i birth
necr/o dead
nephr/o kidney
neur/o nerve
norm/o rule, order
nos/o disease
obstetr/o midwife
ocul/o eye
odont/o tooth
onc/o tumor
onycho/o nail
o/o egg
oophor/o ovary
ophthalm/o eye
opt/o, optic/o eye
or/o mouth
orch/o testicle, testis
orchi/o testicle, testis
orchid/o testicle, testis
orth/o striaght
osm/o smell
oste/o bone
ot/o ear
ovari/o ovary
pancreat/o pancreas
parathyroid/o parathyroid gland
path/o disease
ped/o child
pelv/o hip bone
peritone/o peritoneum (membrane around abdominal organs)
perone/o fibula
phak/o lens of the eye
phalang/o phalanges (finger and toe bones)
pharyng/o pharynx, throat
phleb/o vein
phren/o diaphragm
phren/o mind
pituitar/o pituitary gland
plas/o developmental, formation, growth
pleur/o pleura (membrane around the lungs)
pneum/o air, lung
pneumon/o lung
poster/o behind
prosth/o artificial replacement
proct/o anus and rectum
prostat/o prostate gland
psych/o mind
pulmon/o lung
pyel/o renal pelvis (central section of the kidney)
radi/o x-ray; radius (lateral lower arm bone)
rect/o rectum
ren/o kidney
retin/o retina of the eye
rhabdomy/o striated (skeletal) muscle
rheumat/o flow, fluid
rhin/o nose
sacr/o sacrum
salping/o fallopian tube; eustachian tube
sarc/o flesh
scapul/o shoulder blade (bone)
scrot/o scrotal sac, scrotom
sept/o infection
septic/o infection
son/o sound
spin/o backbone, spine, vertebrae
splen/o spleen
spondyl/o backbone, vertebrae
stern/o sternum (breastbone)
stomat/o mouth
tendin/o, ten/o tendon
theli/o, thel/o nipple
thorac/o chest
thromb/o clot
thym/o thymus gland
thyr/o, thyroid/o, thyroaden/o thyroid gland
tibi/o tibia or shin bone (lower leg bone)
tonsill/o tonsils
top/o to put, place
trache/o trachea, windpipe
troph/o development, nourishment
tympan/o eardrum
uln/o ulna (medial lower arm bone)
ungu/o nail
ureter/o ureter
urethr/o urethra
ur/o urine, urinary tract
uter/o uterus
vagin/o vagina
vas/o vas deferens, vessel
vascul/o blood vessel
ven/o vein
venul/o venule
vertebr/o backbone, vertebra
vesic/o urinary bladder
Created by: amcdoulett
Popular Medical sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards