Anatomy Arcade provides students with a great resource to learn about the various systems of the body.  Two big games, Whack a Bone and Poke a Muscle, allow students to practice very in-depth labeling of the skeletal and muscular systems (because accuracy is important and some bones and muscles can be small, it is best to play these games with a keyboard case that includes a mouse).  Anatomy Arcade also includes other activities, such as jigsaw puzzles and videos for the other systems in the body.

Website: http://www.anatomyarcade.com/
Subject: Anatomy
Grade Level: 5-12
Price: Free