You should first grasp angles of lower jaw and lift.
Any opposable articulated structure at the mouth's opening is referred to as a jaw, and it is often utilised to grab and manipulate food. The term "jaws" is often used widely to refer to the entire group of structures that make up the vault of the mouth and function to open and close it. Jaws are an integral feature of the body plans of most animals and humans. Arthropods have chitinous, lateral opposing jaws that can be made up of mandibles or chelicerae. These jaws frequently consist of several mouthpieces.
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