angi/o
vessel (usually refers to blood vessel)
aort/o
aorta
arteri/o
artery
ather/o
yellowish, fatty plaque
atri/o
atrium
cardi/o
heart
ech/o
sound
electr/o
electricity, electrical activity
isch/o
deficiency, blockage
lymph/o
lymph, lymph tissue
lymphaden/o
lymph node
myel/o
bone marrow
phleb/o, ven/o
vein
plasm/o
plasma
splen/o
spleen
therm/o
heat
thromb/o
clot
thym/o
thymus gland
valv/o, valvul/o
valve
ventricul/o
ventricle
brady-
slow
pan-
all, total
-ac
pertaining to
-apheresis
removal