Anatomy is a sub set of Biology, but a perfectly acceptable course for a homeschooler.
More specifically, Anatomy is "branch of biology concerned with the study of body structure of various organisms, including humans"
This is an online book provided by Bartelby.com. You could create tests yourself to go along with this text, or have the student write essays to explain what they have learned or to discuss theories. This online book has excellent illustrations.
^ Here's an anatomy coloring book you can use alongside the free online book.
~posted by Andrea from Notes from a Homeschooling Mom