Experiential Anatomy = Anatomy in motion
Experiential Anatomy ≡ Understanding of breathing, posture, vocal chords, larynx control etc.
Experiential Anatomy > Winging it!
It is imperative that you learn about the mechanics of your body - your anatomy in motion. Everything in our body is tied together, the better you understand one thing the better you understand your entirety. Here's a reading list, read it or just use it selectively for references. Many of these books are available at the public library as well so don't let cost interfere with progress!
