Question

which word part means \vein\?
ather/o
phleb/o
gi/o
isch/o

Explanation:

In medical - related word parts, "phleb/o" refers to veins. "ather/o" is related to fatty substances, "angi/o" is related to blood vessels in general, and "isch/o" means to hold back or block.

Answer:

B. phleb/o