The stomach wall has 5 layers: 1  The innermost layer is the mucosa. 2  Next is a supporting layer called the submucosa. 3  Outside of this is the muscularis propria, a thick layer of muscle that moves and mixes the stomach contents. 4  The outer 2 layers, the subserosa and the outermost serosa, wrap the stomach.
Definitions of chest voice. 1. (music) the timbre that is characteristic of a certain range and manner of production of the human voice or of different pipe organ stops or of different musical instruments.
Chest & Head Voice. Your chest voice is usually your speaking voice range. It is natural and transforms to become your vocal range in singing. You can also use your chest voice to reach lower vocal ranges. Your head voice, on the other hand, will help you resonate sounds that may not be as easily done when you are speaking.