We just finished our medical terminology unit, a few tips from my experiance are:
-Start early don't put it off to cram in the week before.
-Saying the word and touching that part of of the body and saying it again.
-Repeat the practice tests if there are any in the back of your book, if not ask your instructor if they have any.
-A realy good way to learn them if you have the time, is make up flash cards (very time consuming, but really helped me) go over and over and over them in all your spare time (if you have any) and ass you know them take them out of your pile, that way your not waisting your time on ones you know.
Good luck,hope these help, you'll get it's just straight memory work.
keep us posted