Ok, but typos abundant and Quiz is worthless

The general concept of muscle anatomy is available. Good detail of insertion points and functions. That being said, there are many typos throughout the site showing a lack of upkeep. Also, the quiz is virtually unusable. You have toggle the screen from the answers to the diagram and there is no way to zoom in. This is ridiculous when you are trying to identify flexor a or extensors. You actually cannot toggle the view at all in quiz mode which makes the quizzes very hard to impossible. Also, often the answers with drag and drop will get moved when you try to move back to the answers which is frustrating when you are fighting a clock.

Appiscrap about Muscle System Pro III - iPhone, v3.7