masseter
The chewing muscle of the mouth is called the masseter muscle. It is one of the main muscles used in biting and chewing food. The masseter muscle is located on the side of the face and is one of the strongest muscles in the human body.
Chewing / biting
masseter
It is your jaw-bone. So it helps you chew your food.
it depends on from what direction and what angle. and what part of you body that you are using.
premolars are for chewing
Tobacco can be used for chewing
They are teeth.
saliva
They are used for chewing your food up.
Muscle spindles are sensory receptors that monitor muscle tone. They are located within the muscle belly and are sensitive to changes in muscle length and stretch, providing feedback to the central nervous system about the state of muscle contraction.
The maxilla forms the upper jaw. See the related link for more information.