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.
The first recorded mention of the term chest voice was around the 13th century, when it was distinguished from the throat and the head voice (pectoris, guttoris, capitisâat this time it is likely head voice referred to the falsetto register) by the writers Johannes de Garlandia and Jerome of Moravia.