prefix
suffix
M/S
Hematology
Nervous System
100

a-

no, not, without 

100

-itis

inflammation 

100

Arthr/o

Joint 
100

Cyto/o

cell

100

Alges/o

sensitivity to pain

200

micro-

small

200

-tomy 

incision, process of cutting into 

200

Myos/o

muscle 
200

Erythr/o

red

200

Hydr/o

Fluids; water

300

dys-

difficult, abnormal, painful 

300

-logy

study of

300

Femor/o

femur

300

Leuko/o

White
300

Meningi/o

Meninges

400

inter-

between 

400

-ectomy

removal, excision, resection

400

Spondyl/o

vertebra

400

Chrom/o

Color
400

Myel/o

Spinal cord; bone marrow

500

endo-

within
500
-megaly

enlargement 

500

Ped/o

Foot; child 

500

Phleb/o

vein

500

Cephal/o

Head

M
e
n
u