Well, here's 2 facts that they use repeatedly: 1  In order to build muscle, you need to consume excess calories. 2  In order to lose fat there must be a calorie deficit.
In human anatomy, the mouth is the first portion of the alimentary canal that receives food and saliva. The oral mucosa is the mucous membrane epithelium lining the inside of the mouth.
Saliva contains the amylase enzymes that help to break down chemically of carbohydrates in the food. Teeth help physical breakdown of the food into smaller pieces by tearing and chewing it that aids further digestion.The jaw and tongue movement assist chewing and swallowing of the food.uman digestion begins in the mouth where food is chewed and masticated. When food is dropping in the mouth, the tongue helps to move it around and the saliva coats, stick-together and lubricates the food for easier chewing and swallowing.