| A | B |
|---|
| Generator | The Breathing Mechanism |
| Vibrator | The vocal Cords |
| Articulators | Tongue, Teeth , Jaw and Lips |
| Resonators | Head, Chest and Throat Cavaties |
| Abdominal and Internal Intercostal Muscles | Muscles used during exhalation |
| Diaphragm and Exterior Intercostal Muscles | Muscles used during inhalation |
| flat and tense | Position of diaphragm during inhalation |
| "True" Vocal Cords | Used during normal speaking |
| arched and relaxed | Position of diaphragm during exhalation |
| "False" Vocal Cords | Used during whispering |
| Head Voice | Used in higher part of range |
| Chest Voice | Used in lower part of range |
