For these studies, I used my own arms and legs as my subject and Jeno Bracsay's Anatomy for the Artists for reference. The first studies were from the same angles as in the book to make it easier to identify the muscles on my own body. First, I do a very quick line drawing of my arm or leg. Next, I draw in the bones, starting with the landmarks then filling in the rest from the book. Then, I draw in and label the muscles. I like this method because identifying the muscles on my own body makes the knowledge very tangible. I can look at the muscles in three dimensions right in front of me where ever I am. After identifying the muscles from straight on, I repeated the process from various angles and poses. This is not my first time studying anatomy, but so far, it is the method that has worked best for me. I feel like I really have this knowledge down. Since doing these studies I have had a much easier time identifying muscles when drawing from a live model.
Next I drew more arm and leg anatomy from imagination. here are a few.