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 larynx, commonly called the voice box, is an organ in the top of the neck of tetrapods involved in breathing, producing sound, and protecting the trachea against food aspiration. The larynx houses the vocal cords, and manipulates pitch and volume, which is essential for phonation.