This is a picture of the human skeleton I had years back that I took and photo shopped for students to be able to label in a quiz.
I did not draw the skeleton, but did get rid of the words and put new arrows and lines in to allow students to label the bones.
It came in very handy and I used it all of my middle school teaching years after.
It may be a little too elementary for high schoolers, but could be a good review for them on the basics.
I do not have a key with it but it is so basic that you should not need one if you teach the subject. If you do need one, feel free to email me and ask!