Okay, sounds conflicting. You want physiotherapy information, but then again you want to find just basic human anatomy and biomechanics? What?
Frederic Delavier has a book called Strength training Anatomy. That is the best source for what you want. With awesome pictures and flawless and clear anatomy. EliteFTS has a great exercise index, check that. http://train.elitefts.net/
For physiotherapeutic side and still muscle anatomy, I'd recommend Anatomy Trains by T. Myers. An awesome book about the soft-tissue network our body utilizes on our every move.