Here is a diagram to help you with your chart.

Please remember, your ticket to enter class tomorrow (Wednesday, 25 May 2916) is a) your anatomical chart with 20 facts, and b) your preparation notes for the discussion.  The discussion will focus mainly on the question we started to look at today: is it worth the risk to take substances when the long term effects are unknown, and what are the ethics behind such a study?  Is this possible, or viable, morally speaking?  How would it work?